One person injured Wednesday in a five-vehicle accident on Sixth Street was treated and released from the hospital, Lawrence police said Thursday morning.

Police also identified a 77-year-old Lawrence man, Max L. Dougherty, as the driver who had an apparent medical issue at 2:30 p.m. while driving and striking vehicles that were waiting at a stoplight near Kasold Drive and causing the chain-reaction crash.

Sgt. Trent McKinley, a police spokesman, said Officer Charlie Stewart arrived at the crash scene and pulled Dougherty from a Cadillac and performed CPR. Dougherty was later taken to a Kansas City-area hospital in serious condition. McKinley said police had no update on Dougherty’s condition Thursday morning and that officers were still investigating the accident, which could take several days.

Bob Hallinan, a spokesman for Kansas University Hospital in Kansas City, Kan., said due to the hospital’s privacy policy officials were prohibited from releasing information about Dougherty’s condition.

The only other driver taken to the hospital, Michael S. Sledd, 21, of Lawrence, was treated and released from Lawrence Memorial Hospital, McKinley said. Police spent several hours mapping the crash scene Wednesday afternoon and evening, which caused traffic issues in the westbound lanes of Sixth Street.