Officials report that the postal truck was traveling eastbound on Addison Street at apporixmately 4:08 a.m. when the driver, a 23-year-old woman, ran a red light at the intersection with Western Avenue.
The woman was taken to Illinois Masonic Hospital in serious condition. The driver of the semi truck, a 57-year-old man, was not seriously injured and did not go to a hospital.
No charges have been filed.