Girls, 11 and 12, shot in head in separate attacks in Chicago

Police are investigating separate shootings on Chicago's South Side that left two young girls in critical condition.

The Chicago Tribune reports an 11-year-old girl was sitting in a parked vehicle Saturday night when she was hit by gunfire in the back of the head.

A 12-year-old girl was shot in the head while playing with friends in an unrelated shooting the same night.

The weekend's gun violence also claimed the lives of a 23-year-old man and a 25-year-old woman in separate incidents. The Tribune reports at least four others were wounded Saturday in separate attacks.