An alleged Iranian hit squad used $27 portable radios to hide at least five bombs that Israeli and American authorities say they intended to use against Israeli targets in Bangkok, Thailand. 
 
 Exclusive photos of one undetonated bomb, obtained by ABC News, show the inside of the radio packed with tiny ball bearings and six magnets. Bomb experts say the magnets indicate the bomb was designed to be stuck to the side of a vehicle. 
 
 EXCLUSIVE PHOTOS: Bangkok Bombs 
 
 A surveillance photo of one of the alleged hit squad members, identified as an Iranian national named Saeid Moradi, shows him holding a radio in each hand. 
 
 According to authorities, a bomb exploded in the Bangkok house where Moradi and two other Iranians had been staying. After the blast, Moradi attempted to hail a cab. When the driver refused to pick him up, he allegedly threw a bomb, injuring four bystanders. 
 
 When police approached, Moradi allegedly threw another bomb, but lost both of his legs when it bounced back and exploded near him, according to Thai authorities. He was arrested following the incident and remains in custody in Thailand. 
 
 After the attack, police say they discovered two unexploded bombs in the house where Moradi and the other Iranians had been staying, including the one shown in the photos. 
 
 PHOTOS: Covert War? Iran vs. the West 
 
 The authorities in Bangkok say they recovered more than a pound of white military explosive from one unexploded bomb that they said was to be detonated with an M26 hand grenade fuse. The photos show a pin that when pulled, authorities said, would trigger an explosion about four and a half seconds after it was pulled. 
 
 Israeli authorities and U.S. bomb experts say the bomb in the photos is strikingly similar to those used in other attacks last week in the republic of Georgia and India. "While there are small differences," said one U.S. expert, "they appear to be factory made." 
 
 Multiple authorities told ABC News the devices were either slipped through airport security or smuggled in a diplomatic pouch. 
 
 A magnetic bomb was discovered attached to the car of an Israeli diplomat in Tbilisi, Georgia and a similar device was believed responsible for the attack in New Delhi, which injured the wife of an Israeli diplomat, her driver and two passing motorists. 
 
 Iran has denied any connection with the arrests in Bangkok or to the other attacks. 
 
 Yoram Cohen, the head of Israeli's internal security service, Shin Bet, told an audience at a closed forum in Tel Aviv recently that Iran is trying to hit Israeli targets because of what it believes are Israeli attacks that have killed at least five scientists in its nuclear program. 
 
 What concerns authorities in the U.S. is that should Israel go to war with Iran, Israeli and Jewish targets in the U.S. could be hit by similar bombs in a terror campaign. 
 
 Click Here for the Blotter Homepage. ||||| It began when three men blew up their house accidentally on Valentine's Day in Bangkok. It ended with a gory scene that looked more like Baghdad: a bloodied, would-be bomber with severed legs moaning on a glass-strewn sidewalk after another botched blast. 
 
 In this photo taken Monday, Feb. 20, 2012, an Iranian bomb suspect Mohammad Kharzei, center, is escorted by Thai police officers to verify the house where he and other Iranian compatriots rented in Bangkok,... (Associated Press) 
 
 In this photo taken Monday, Feb. 20, 2012, an Iranian bomb suspect Mohammad Kharzei, right, listens to a Thai police officer as he is taken to verify the house where he and other Iranian compatriots rented... (Associated Press) 
 
 In this combination of images made from surveillance video on Thursday, Feb. 2, 2012, left, and on Tuesday, Feb. 14, 2012, and released on Monday, Feb. 20, 2012 by the National Thai Police, Norouzi Shayan... (Associated Press) 
 
 Last week's explosions in the Thai capital announced the apparent arrival of international terrorists in this Southeast Asian nation, revealing a plot allegedly aimed against Israeli diplomats. But big questions remain about who was behind the plot, and why. 
 
 So far, three Iranian citizens have been detained in the case, though police say they haven't revealed anything substantial under interrogation. A Thai court issued an arrest warrant for an additional Iranian suspect this week, and on Tuesday, police were investigating the discovery of stickers plastered on Bangkok utility poles and billboards that may have marked routes for intended victims. 
 
 Was it part of a covert tit-for-tat war in which Iranians are hitting back at Israel for allegedly killing Iranian nuclear scientists in Tehran? Were the assailants part of a global terror network? If they were professional assassins, why were they so inept? 
 
 "There are many theories," government spokeswoman Thitima Chaisaeng said shortly after the Bangkok blasts. 
 
 And so far, not many answers. 
 
 The explosions Feb. 14 came one day after two other incidents in India and the former Soviet Republic of Georgia in which bombers tried to hit Israeli targets with so-called "sticky" bombs that attach magnetically to vehicles. 
 
 Whoever was responsible for the cross-continental string of violence, the perception that Tehran is to blame "has undoubtedly exacerbated the already mounting tensions surrounding Iran's nuclear program, and international efforts to curtail it," said Will Hartley, head of the Terrorism & Insurgency Center at IHS Jane's in London. 
 
 Iran has denied responsibility. Thai investigators, meanwhile, have been left to pick up the pieces and solve the riddle of what happened on Thai soil. 
 
 Police say a 31-year-old Iranian named Leila Rohani, who visited Thailand four times over the last year, paved the way for the operation by renting a two-story house in the Thai capital. 
 
 Rohani left Thailand on Feb. 5, and the three now-detained Iranians arrived in the predominantly Buddhist country several days later, each traveling on a 60-day tourist visa. The trio met in Pattaya, a beach town on the Gulf of Thailand known for its abundance of sleazy go-go bars. 
 
 They were Mohammad Kharzei, 42; Masoud Sedaghatzadeh, 31; and Saeid Moradi, 28. Immigration police say Kharzei and Sedaghatzadeh, at least, had visited Thailand before, Sedaghatzadeh as recently as December. 
 
 In Pattaya, the men checked into separate rooms at two different hotels and relaxed. For a couple of days, they hung out with several prostitutes, said Lt. Col. Noppon Kuldiloke, a senior immigration police investigator in southern Thailand. 
 
 A snapshot of the group during this period emerged last week. Published on the front page of the Bangkok Post after the explosions, a cellphone image taken by one of the sex workers showed the Iranians at a Middle Eastern-themed bar or restaurant. Surrounded by hookah water-pipes and a drink-filled table, Kharzei and Sedaghatzadeh each cradled a woman in their arms, while Moradi reclined on a cushion. 
 
 The group drank and played pool together, according to the report, and then headed to Bangkok to stay at the house Rohani had arranged for them. 
 
 Whatever the men were planning went awry on the afternoon of Feb. 14, when an explosives cache stored at the home ignited by mistake. The ensuing blast blew the roof off an entire front room, simultaneously shredding a first floor edifice and showering the driveway and a grass courtyard with debris. 
 
 A closed circuit video camera installed on the street outside showed the Iranians emerge, one by one. 
 
 First out was an apparently barefoot Sedaghatzadeh, wearing shorts and sunglasses. Kharzei was next, carrying a large backpack strung over his shoulder. 
 
 By the time Moradi finally exited the compound, about five minutes later, a small crowd had begun to gather. But the bystanders recoiled in fear, backing up and turning away as Moradi strode past wearing a jacket and a black backpack. Blood appeared to drip from a large wound on the left side of his face, staining a blue baseball cap. 
 
 In each hand, he carried what appeared to be portable radios _ possibly homemade "sticky" bombs. 
 
 As Moradi tried to flee, a red taxi passed and _ for reasons that remain unclear _ he dropped one of the bombs into the road in front of it, blowing apart the vehicle's front end and wounding the driver and three other Thai bystanders. 
 
 Boonlak Phakdi, a cleaning lady living in the area, said the driver got out and shouted to other taxis that Moradi tried to flag down: "Don't take that man in your car!" 
 
 Moradi turned onto a main road as police began moving in. One of them, Sgt. Panphum Rakkuson, said the Iranian pulled a rectangular-shaped box out of his backpack and threw it toward the officers. 
 
 "We were stunned and couldn't do anything but stand there," Panphum said. 
 
 The bomb, though, got caught on something, and hit the ground next to Moradi and exploded, instantly shredding both his legs below the knee. 
 
 Panphum said Moradi reached out for a piece of broken glass from the sidewalk and drew it toward his neck, as if he was trying to kill himself. 
 
 Moradi was taken to a Bangkok hospital under police custody, while Kharzei was arrested at the international airport that night, trying to board a flight to Iran. Sedaghatzadeh was detained the next day in Malaysia, and Thailand is seeking his extradition. 
 
 Thai courts have issued arrest warrants for all three men, as well as Rohani and a fifth Iranian, 57-year-old Norouzi Shayan Ali Akbar. 
 
 Akbar, who has dark hair and a silver beard, was caught on CCTV footage leaving the Iranians' home the morning of the blast. Deputy national police chief Gen. Pansiri Prapawat said Akbar left the country hours later on a flight to Tehran. 
 
 Officials have given contradictory accounts of Akbar's role. Police Lt. Gen. Winai Thongsong said he may have been a bomb-making expert who provided training to the other three Iranians. But Monday, Winai backtracked, saying Akbar may only have been a caretaker at the residence. 
 
 Investigators say Kharzei _ the only one Thai officials have been able to interrogate so far _ has been tightlipped, admitting through an interpreter that he was in the house but denying any knowledge of explosives. 
 
 Over the weekend, authorities seized a blue Honda motorcycle they say was purchased by Rohani in December and used by Sedaghatzadeh. It was found abandoned on a Bangkok street Saturday. 
 
 Police have also found 52 stickers with the word "SEJEAL" on them _ possibly a reference to a passage from the Quran. The stickers were spread at dozens of locations across the capital, possibly to mark routes that could be used by targets. The stickers are identical to others found under the seat of the Iranians' motorcycle as well as in an apartment used by Rohani. 
 
 The most damning evidence was found in the destroyed house: two more portable radio bombs _ each filled with one or two pounds (kilograms) of plastic explosives, and _ according to IHS Jane's _ ball-bearings. 
 
 The bombs had round, coin-like magnets on them _ similar to the "sticky" bombs used against Israeli envoys in a foiled attack in Tbilisi on Feb. 13 and a blast in New Delhi the same day that injured four people, including a diplomat's wife. 
 
 Thai officials say the Bangkok plot was aimed at Israeli diplomats, too. Israel has gone further, alleging the evidence in all three plots clearly points to Iran. 
 
 However, the "sticky" bombs also are similar to those used in the Jan. 11 assassination of Iranian nuclear scientist Mostafa Ahmadi Roshan in Tehran. That attack, carried out by two unidentified assailants on a motorcycle who attached a magnetic bomb to his car, was blamed on Israel. 
 
 Iran's ambassador to Thailand, Majid Bizmark, said the Bangkok case remains ambiguous. 
 
 Asked about the culprits in an interview published in the local Nation newspaper, Bizmark said: "We don't know who they are. They could be anybody." 
 
 ___ 
 
 Associated Press writer Thanyarat Doksone contributed to this report.
– The suspected Iranian hit squad busted in Bangkok last week made cheap portable radios into bombs that they intended to use against Israeli targets, authorities say. Experts say the bombs are nearly identical to those attached to vehicles in attacks in India and the republic of Georgia, ABC reports. After an explosion at a house in Bangkok, one of the three Iranians now in custody in Thailand hurled a radio bomb at police in an attempt to evade arrest, but it bounced back and shredded both his legs. Other bombs were found in the house. The radio bombs contained ball bearings and magnets, indicating that they were going to be attached to vehicles as in the India and Georgia blasts. Thai authorities say the three suspects—who partied with prostitutes soon after arriving in the country—haven't revealed anything substantial under interrogation. Iran has denied any responsibility. While analysts suspect there may be a revenge link to the killing of Iranian nuclear scientists, many questions remain, notes AP, including: Were the assailants part of a global terror network, and if they were professional assassins, why were they so inept?