At the same time, a woman in a Toyota Tacoma pickup truck was approaching along Monterey. The pickup truck was struck and ended up on its side on a nearby front lawn.
The woman, approximately 45-years in age, was transported to San Gabriel Medical Center with serious injuries to her pelvic area.
One of the vehicles alleged to be involved in street racing, a black Toyota Corolla, was being driven by a 50-year-old man. He complained of chest pains and was transported to the hospital.
The other vehicle involved apparently sped away. Police are seeking a four-door BMW. It could have been gray -- officials say it was a light color.
Anyone with any information about this incident, which occurred around 10:30 p.m. Wednesday night, is urged to call the Pasadena Police Department at (626) 403-7270.