Minneapolis An off-duty Northwest Airlines employee was arrested after a woman on a flight from Seattle complained that the man had ejaculated on her.

The FBI identified the man as Samuel Oscar Gonzalez, 20, of Lakewood, Wash. He was charged in federal court with simple assault, a misdemeanor.

It happened on the redeye Monday morning from Seattle to Minneapolis. The woman was headed back to college.

Near the end of the flight, the FBI said Gonzalez sat next to the woman as she was trying to sleep. He touched her, which she described as spooning, lifted her shirt and then got up and left. Court documents said she felt a warm fluid on her back, clothes and seat after he walked away. She told the officers he had ejaculated on her.

The woman told the flight attendants about the incident. They moved her to another seat and called police from the air. The crew also moved the man to a seat near the front of the plane until the end of the flight.

Northwest Airlines Corp. said the flight crew asked that police meet the flight from Seattle when it arrived early Monday in Minneapolis, and that's where officers arrested Gonzalez.

The victim told her boyfriend she was told Gonzalez is a Northwest employee.

"I know she was really upset, just kind of confused about what's going on, what's happening," said the victim's boyfriend, Mark, who asked to be identified only by his first name.

Northwest said that Gonzalez was an equipment service worker, a category that includes baggage handlers, but said he was not working at the time.

They released a statement that said, “The NWA employee has been suspended pending a review of the incident. Northwest is cooperating fully with law enforcement authorities on this matter."

The FBI said Gonzalez was detained after his initial appearance in federal court on Monday. He could face up to six months in jail.