A woman and her two young sons were killed when they were struck by a speeding car on Roosevelt Boulevard late Tuesday night.
The woman's two other sons were injured in the fatal accident, which happened about 10:30 p.m. near the Boulevard's intersection with Rockland Street in Philadelphia's Olney section, 6ABC Action News reports.
Police are investigating whether the car that struck the woman and her four sons was drag racing, according to the report.
The 27-year-old woman and her 1-year-old son were pronounced dead at the scene. Her 9-month-old son died at the hospital, where her other two sons, 4 and 5 years old, are being treated.