PHILADELPHIA (WPVI) -- A Philadelphia police officer is accused of driving drunk and causing a serious crash.It happened just before 7 p.m. Sunday in the northbound lanes of Roosevelt Boulevard at Bustleton Avenue.Police said Officers John Sears was off-duty when he crashed his car into another vehicle.Police said they found Sears inside an overturned vehicle.Officers also assisted a second driver and passenger.Police said a breathalyzer test determined Sears was over the legal limit.Sears, a 13 year veteran of the force, is currently assigned to the Safety Office.