Reports state that Mohamadou Lamine Mbacke, 31, flew into NY from Detroit, where he was scheduled to depart Tuesday night on a flight to his home country.
ICE agents waited over an hour to notify local cops that a detainee had escaped their custody at Kennedy Airport, sources said.
The man, who is described as a "violent deportee", broke away after agents removed Mbacke's handcuffs as he went through X-ray screening, the Daily News reports.
The escapee, who remained on the loose Thursday morning after getting away about 8 p.m. Tuesday, has not been identified. Mbacke has previous criminal convictions for multiple weapons and firearms offenses.
The 6-2, 190-pound man remains at large, sources said.
"A check of video cameras by authorities showed the individual left the airport in a cab", Port Authority spokesman Joseph Pentangelo said. He then bolted, Port Authority police said. He was ordered to be deported in September 2015.
"An individual being transported by federal immigration officials at JFK Airport [Tuesday] night eluded custody during transfer to a connecting flight", The Port Authority of NY and New Jersey said. "Members of the public should not to attempt to apprehend him and instead immediately contact authorities".