A 19-year-old woman was arrested and treated for minor injuries at Mercy Hospital after Police say she broke into a 21-year-old man's apartment at the Camden Cross Creek Apartments, 807 Cross Creek Drive, according to a Creve Coeur police spokesman.

Sgt. Glen Williams said the two knew each other. The break-in occurred November 20.

Police withheld the identities of the people involved pending charges being filed. The woman was treated for abrasions and evaluated at the hospital.

That same day, in the same apartment complex, Williams said someone broke into three cars parked in the complex. The suspect punched out the door locks and entered the cars, stealing small items such as CDs, a checkbook and a backpack, Williams said. Police are investigating.

Editor's Note: this article was updated after Creve Coeur police said they inadvertently indicated the man broke into the woman's apartment. The date of the incident was also updated.