Authorities say a woman walking along White Oak Bayou Monday evening was sexually assaulted and managed to fight off her attacker before he could drown her.

About 6:30 p.m., the woman was walking along the bayou in the 7000 block of Bent Branch Drive, in the Inwood area, when the man attacked her and attempted to drown her in the bayou, Precinct 1 Constable Alan Rosen said in a social media post. 

Rosen said preliminary information on the attacker is that he is in his early-to-mid 20s and missing front teeth. He said the man was reported to be riding a bike and wearing an olive-green long sleeve undershirt with a gray design on the side. He reportedly had a black backpack. 

The man may also be injured in one eye and missing some hair after the victim fought him off, Rosen said. 

Anyone with information is encouraged to contact Crime Stoppers at 713-222-8477 or Harris County Constable Precinct One Dispatch at 713-755-7628.