A 12-year-old girl was raped by four teenagers in a Southwest Philadelphia recreation center Monday evening, police said.

Four 14-year-old boys attacked the girl on a third-floor landing in a rear stairwell inside the Francis Myers Recreation Center at 58th Street and Kingsessing Avenue shortly after 7:30, police said.

Detectives from the Special Victims Unit were investigating, police said. The 12-year-old girl received no additional injuries, and her assailants did not use a weapon, police said.

No arrests were reported Monday night.

- Morgan Zalot