Toledo firefighters remove an unidentified driver who was pinned in one of three cars involved in a crash in the 3700 block of Heatherdowns Boulevard about 7:30 yesterday morning. The driver of the second vehicle, a woman, also had to be extricated by emergency personnel. Both were taken to the University of Toledo Medical Center, formerly the Medical College of Ohio Hospital, with serious injuries. The third driver, a woman, also was taken to an area hospital. The crash remains under investigation. Identities of the injured were unavailable.