OKLAHOMA CITY (AP) — An Oklahoma City police officer is accused of sexually assaulting black women while he should have been patrolling the city — sometimes targeting women walking alone and at other times assaulting motorists he pulled over on city streets.

An affidavit filed Friday says 27-year-old Daniel Ken Holtzclaw took one woman to a different location for an assault, while some occurred in his patrol car. Holtzclaw was arrested on charges including rape, sexual battery and indecent exposure.

Holtzclaw was assigned to a patrol division north and east of the Oklahoma state Capitol building. Capt. Dexter Nelson said Friday that while all of the alleged victims are black, that might be because the officer was assigned to a predominantly black neighborhood.

Police officials said Holtzclaw had been on patrol about a year.