American Flight 725, a Boeing 757 with 151 passengers and seven crew on board, arrived in Oklahoma City at 1:35 p.m. CDT and was back in the air an hour later on the way to Los Angeles, said Tim Smith, a spokesman for American Airlines.

The passenger was removed from the plane in Oklahoma City and was undergoing a psychiatric evaluation, FBI spokesman Gary Johnson said.

Members of the New England Revolution of Major League Soccer were among those who grabbed the passenger near an exit door, Johnson said. Tie wraps were placed on the man, whose name was not immediately released, he said.

But Stacey James, a spokesman for the New England Patriots, which shares a common owner with the Revolution, said three Revolution staff members helped restrain the unruly passenger: Michael Burns, vice president of player personnel; assistant coach Gwynne Williams; and general manager Craig Tornberg.

According to Johnson, the passenger emerged from a bathroom without his clothes on.

''He was asked to go back to the bathroom to put his clothes on and he did and went back to his seat and then allegedly attempted to open an aircraft emergency exit door,'' Johnson said.