An official says a flight was diverted to the Seattle area after a man tried to kiss a sleeping girl next to him on the airplane.

Seattle-Tacoma International Airport spokesman Perry Cooper said Tuesday that Port of Seattle police arrested the 23-year-old California man for investigation of fourth-degree assault.

Cooper says the man attempted to kiss a 16-year-old girl who was sleeping next to him. The pilot was notified and reported it to police.

The Alaska Airlines flight was heading to Anchorage, Alaska, from Portland, Oregon. The girl remained on the plane when it later departed for Anchorage.

Cooper says the man was cooperative when he was arrested. He is expected to be booked into King County Jail.