CHICAGO (AP) — Authorities found the bodies of five young people Wednesday inside a ransacked house on Chicago's South Side, raising the body count in an already violent spring, police said.

It appeared the three men and two women had been shot, but investigators were waiting for the Cook County medical examiner's office to confirm a cause of death, said Chief of Detectives Thomas Byrne. Autopsies were scheduled for Thursday, the medical examiner's office said.

All the victims were in their 20s, and they all knew each other, said Deputy Chief Eugene Williams. There were signs of forced entry into the house, which appeared to have been ransacked, Williams said.

The discovery comes on the heels of a spate of violence in Chicago. Nine people died in 36 shootings over the past weekend.