DENVER (AP) -- A 63-year-old Nevada man is facing federal charges after being accused of committing lewd acts on an airplane.

Colorado's U.S. Attorney, John Walsh, said Monday that Daniel Drinan of Reno was arrested Saturday night at Denver International Airport after passengers complained he had unbuttoned his pants while watching pornography. Prosecutors allege that his genitals were exposed underneath his laptop when a flight attendant asked him to stop.

Drinan was on Southwest Flight 1998 en route from Baltimore-Washington International Airport to Denver. He was arrested after the flight landed.

According to the criminal complaint, Drinan apologized and allegedly said he decided to touch himself because the lights were out, no one was next to him and he was tired.

If convicted, Drinan faces up to 90 days in jail and a $250,000 fine.