( CNN ) -- Search crews in Indonesia have suspended efforts to locate two tourists , still missing two and half days after the tourist boat they were traveling in sank . The head of the rescue mission says the search will resume on Tuesday morning . Officials say 23 other passengers and crew were rescued , pulled from the water by local fishermen and search and rescue teams . The survivors spent more than 36 hours in the water . The two people missing are believed to be Spanish , other passengers on board said . However , officials at the Spanish foreign ministry could not confirm this . The tourists -- mostly from Europe -- were on what was supposed to be an exotic getaway : a cruise from west to east , departing from Lombok in the province of West Nusa Tenggara and ending in Labuan Bajo , in East Nusa Tenggara , with a number of stops along the way . Under normal conditions , the journey would have taken four nights to complete . Everything appeared fine when the vessel , named Versace Amara , set sail last Thursday . Three days into the trip , the boat ran into trouble . Budiawan , head of the rescue mission , who like many Indonesians goes by one name , says it 's believed the boat hit rocks off the volcanic island of Sangeang , at about 1 a.m. on Saturday morning . Water began leaking into the vessel , forcing the passengers and crew to abandon ship . The vessel was carrying 20 tourists and three local crew members and two local guides . Budiawan says authorities were first notified of the incident on Sunday morning , and immediately deployed crews to the site . The nearest town is Bima on the island of Sumbawa -- a two-hour boat ride away from where the boat sank . The passengers appear to have split into two groups . The first , consisting of 10 tourists , remained near the accident site . They were rescued on Sunday afternoon . Five were picked up by local fishermen , the others retrieved by search and rescue teams and taken to hospital in Bima . After being rescued , one of the passengers identified as Rafael , criticized the lack of equipment on the boat . `` On the boat there was no security . No radio , no GPS , no navigation equipment . There were nothing , '' he told CNN affiliate Trans7 Indonesia . `` Only life jacket , but life jacket it does n't work . If you 're in the middle of the ocean with a life jacket , what happens ? Nothing . Because the most important when you have an accident in the sea is to call the rescue team and to call the radio , GPS or something . They had nothing . In the morning , the crew said 'No one is coming to rescue us . ' '' Another 13 passengers and crew swam in the water using lifebuoys and life vests to stay afloat . They were retrieved by local fishermen on Sunday evening , in the waters of Sape , a town in East Nusa Tenggara province , and are currently being treated at a hospital there . Budiawan says it 's believed the two missing men who were with the second group became separated because of the strong winds and current .
Two tourists missing two days after tourist boat they were traveling in sank in Indonesia . Officials say 23 other passengers and crew were pulled from the water . Boat hit rocks off volcanic island of Sangeang , at about 1 a.m. on Saturday morning , it 's believed . Score: 6