Three people were seriously injured this morning when a car fleeing police hit a tree and two parked cars on Arch Street near 18th, police said.

The 2010 black Honda wrecked just after 5:30 a.m., police spokeswoman Officer Christine O'Brien said. The driver, a 20-year-old woman, and a backseat passenger, whose age and identity are unknown, remain in critical condition at Hahnemann University Hospital, O'Brien said. A front-seat passenger, 18, remains in stable condition at Thomas Jefferson University Hospital.