Washington ( CNN ) -- A bomb threat made at an airport ticket counter in Dayton , Ohio , prompted a search of a US Airways flight that landed safely at Washington 's Reagan airport Sunday , authorities said . A law enforcement official said Sunday afternoon that no explosives have been found and the scene is now clear . The woman who made the threat in Ohio , who was taken into custody , may have mental health issues , the official said . Hours earlier , the FBI , Transportation Security Administration and the Federal Aviation Administration began probing reports of `` a bomb on board US Airways Flight 2596 , '' FBI spokeswoman Lindsay Godwin said . The flight originated in Dayton and was closer to Washington when the threat was made , `` prompting officials to let the plane proceed , '' Godwin said . The US Airways flight departed on time , at 11:42 a.m. , but landed about 30 minutes later than scheduled at 1:36 p.m. , according to the airline 's website . The plane was preparing to land when the airport was told to hold the flight , said Courtney Mickalonis , a spokeswoman for Metropolitan Washington Airports Authority . Upon landing , the plane was directed to a remote runway and the 44 passengers were deplaned , Mickalonis said . US Airways spokeswoman Tina Swail said three crew members also had been aboard the CRJ 200 plane . A K-9 team alerted to a checked bag , TSA said , and local police are investigating . Kristin Lee , a Transportation Security Administration spokeswoman , said Sunday afternoon that the agency is `` aware of a verbal bomb threat . '' All passengers safely were taken off , and the bomb squad swept the plane , she said in an e-mailed statement . Video showed luggage scattered on ground around the runway just outside the aircraft . One person dressed in bomb squad gear opened and looked at the bags , one by one . Other aircraft could be seen taking off from the airport . But US Airways ' express flights -- like the one from Dayton -- are experiencing delays as a result of the incident , airline spokeswoman Tina Swail said . The plane 's passengers , meanwhile , were being questioned by FBI investigators , Mickalonis said . CNN 's Jonathan Helman , Mike M. Ahlers , Carol Cratty and Stephanie Gallman contributed to this report .
NEW : The woman who made the threat may have mental issues , an official says . A man was arrested after he threatened to kill a New York City police officer and his wife on Monday, officials said. No bomb is found and the scene in Washington is now clear , the official adds . The threat was made in person at a ticket counter in Dayton , Ohio . 44 passengers who safely deplaned are being questioned , an airport official says .