A D.C. police officer in pursuit of a stolen Jeep was injured early yesterday in Southeast Washington when the vehicle being pursued, driven by a 12-year-old girl, rammed his police cruiser, police said.

Police said Officer Octavius T. Moore, 34, was thrown from his cruiser. He was listed in guarded condition at Greater Southeast Community Hospital suffering from a concussion and a broken left leg. A driver was charged as a juvenile with assault on a police officer and unauthorized use of a vehicle after she was treated for cuts, police said.

Police said the chase began at 2:48 a.m. near 24th Street and Good Hope Road SE and ended several minutes later when the Jeep smashed into Moore's crusier in the 2300 block of 24th Street SE.

The chase was the second in less than six hours that ended in a collision between a police cruiser and the vehicle being pursued. D.C. police Wednesday night said they chased a driver, whose passenger was screaming for help, from Southeast Washington through a portion of all four quadrants of the city and into Hyattsville.

Charles Randolph Johnson, 22, of 1923 Capitol Ave. SE was arrested by Hyattsville police and charged with two counts of assault and battery after he allegedly rammed two police cruisers, flipping his own car over in the process.

In a separate car theft incident, an auto belonging to Debbie Dingell, wife of Rep. John Dingell (D-Mich.), was stolen from the Dingells' McLean home Wednesday night and recovered yesterday morning. There was no arrest in that incident.