DENVER - Authorities detained a passenger at the Denver airport after he allegedly claimed to have explosives on a Northwest Airlines plane bound for Minneapolis.

Airport spokesman Chuck Cannon says no explosives were found Saturday after the plane was towed away from the terminal and the man was taken into custody.

Cannon says the plane was leaving the gate when the man said he had explosives in his luggage. Northwest spokeswoman Michelle Aguayo Shannon says about 140 people were on the flight.

Passengers were rescreened before continuing on their way.

No charges have been filed against the man, but FBI spokeswoman Kathy Wright says the investigation is continuing. She says the man was taken to a hospital after complaining of medical problems, which weren't disclosed.

The situation comes a day after a bomb threat forced nearly 100 passengers off a Northwest jet waiting for takeoff in Detroit.