OAKLAND -- A woman was badly beaten with a cane Monday night in downtown Oakland and police are seeking the attacker who fled -- in a wheelchair.

The attack happened about 10 p.m. Monday in the 600 block of 16th Street, a short distance from the Elihu M. Harris State Building.

Police said the 49-year-old Oakland woman was walking when the suspect rolled up from behind and began striking her in the face with a wooden cane. The woman lost consciousness and the suspect fled.

The woman was taken to a hospital for treatment of lacerations and a possible broken nose. She was in stable condition.

Police don't have a motive for the attack, but said the woman was able to give them a possible first name of the suspect and a description.

Police and Crime Stoppers of Oakland are offering up to $1,000 in reward money for information leading to the arrest of the suspect. Anyone with information may call police at 510-238-3426 or a tip line at 510-773-2805 or Crime Stoppers at 510-777-8572.