An Uber driver in Portland is being investigated after a female passenger told authorities he sexually assaulted her, police said.

The Portland Police Bureau's Sex Crimes Unit began its probe after the woman reported the alleged incident, which occurred Sept. 22, said Sgt. Chris Burley, a police spokesman.

No arrests have been made, Burley said.

The woman, who detailed the allegations in a Facebook post and in a subsequent interview with KATU (2), said the driver climbed into the backseat of the car while she waited for her boyfriend.

The driver, she said, then forcibly kissed her and tried to thrust his body against hers. The woman said she had to push the driver off of her to get out of the car.

She and her boyfriend, who had been at a bar on Southeast Hawthorne Boulevard, caught a Lyft ride home.

"I was scared, angry, hurt, and confused," the woman wrote in her Facebook post. "It took me a second to realize what the hell was going on."

The Oregonian/OregonLive does not typically name victims of sexual assault. The woman could not be reached for comment Thursday.

An Uber spokesman said the driver had worked about two years for the company. He has since been removed from the company's app.

"What this rider describes is disturbing and wrong," the spokesman said in an emailed statement.

-- Shane Dixon Kavanaugh

skavanaugh@oregonian.com

503-294-7632 || @shanedkavanaugh