PITTSBURGH — Local media are reporting that Pittsburgh detectives are questioning a person of interest in connection with the slaying of two sisters.

Police haven't identified the man or said why they're questioning him over the slayings of 44-year-old Susan Wolfe, 44, and her sister, 38-year-old Sarah Wolfe, who lived together in the city's East Liberty section. Their sister, Mary Wolfe, is a Democratic state representative from Clinton, Iowa.

Police say there was no sign of forced entry into the home and that Sarah Wolfe's car was found parked a mile away. They have otherwise declined to release details, saying the investigation remains too sensitive.

Sarah Wolfe was a psychiatrist and Susan Wolfe, a teacher's aide, had recently moved to the area to live with her sister.