A woman was taken to hospital in Vancouver with minor injuries Friday morning after she was assaulted and dragged on a walking trail in Fraser River Park in Marpole.

Fraser River Park near Tidewater Place at W. 75th Ave (Click for large map)

The Vancouver Police Department said the woman, 52, was walking her dog near the intersection of West 75 Avenue and Tidewater Place at around 9 a.m. PT when a stranger approached and attacked her.

She was dragged a short distance in the park before her screams drew the attention of witnesses, who ran to her aid and scared off the attacker.

Fraser River Park trail attack - evidence

A Vancouver police officer gathers evidence on 75th Avenue, beside Fraser River Park where a woman was assaulted Friday morning. Witnesses saw the suspect drive off in a dark-coloured pickup truck. (CBC)

The suspect — described as a 5'7" white man with a dark skin tone, medium build and black hair — was seen driving away in a dark-coloured pickup truck.

The Vancouver Police Sex Crimes Unit is investigating, and police are asking anyone with information about the attack to call the department at 604-717-0600, or to call Crime Stoppers at 1-800-222-8477.

With files from the CBC's Stephanie Mercier