New York’s LaGuardia airport has re-opened after a man was arrested for possession of a fake bomb.
Authorities closed most of the airport's main terminal for almost four hours before staff and passengers were allowed to return.
Jack Kelly, a spokesman for the Port Authority of New York and New Jersey, said the terminal's Concourse C, where the man was taken into custody, would remain closed until a crime scene investigation had been completed.
Mr Kelly described the suspect as emotionally disturbed and said his bag contained batteries and wires.
A police bomb squad was called in and local media reports described the bag's contents as a fake bomb that was not dangerous.
Officials of the Port Authority, which operates the New York City's three major airports, were working with affected airlines to reroute some travellers.