Ottawa police are looking for a male suspect after a woman in her 20s was sexually assaulted at an Orleans park Wednesday night.

Police said the woman was walking at 11:15 p.m. through Father Richard Ward Park at Bordeau Grove and Vineyard Drive when she was grabbed from behind and pushed to the ground.

The suspect then allegedly sexually assaulted her and then fled the area.

The man is described as having a thin build and standing between five feet nine and five feet ten inches tall.

He was wearing a black ski mask, had a black hood, a black parka-type jacket, black boots and dark gloves, police said. His face was covered during the attack.

Police are asking anyone with information to contact the sexual assault and child abuse unit at 613-236-1222, ext. 5944 or Crime Stoppers at 613-233-8477.