Six injured, three critically, including two 7-year-old boys, in single-vehicle rollover on Roosevelt Boulevard in Philadelphia, Pennsylvania

Three people are in critical condition including two 7-year-old boys following a crash on the Roosevelt Boulevard in the Nicetown section of Philadelphia.Police say the driver lost control of his vehicle around 2 a.m. Sunday near Broad Street and rolled over several times.The driver, described as a man in his 50s, and one of the boys were ejected from the vehicle.The other 7-year-old boy was trapped inside. All three were taken to Temple University Hospital in critical condition.Three other passengers, a woman in her 50s, two men in their 30s, and a 4-year-old girl, are in the hospital in stable condition.Police are trying to determine what led to the crash.The northbound lanes on the Boulevard at the crash site were closed while officers investigated. The lanes reopened around 7 a.m.