A 27-year-old Lockport woman whose car reportedly drifted into an oncoming lane of traffic at 3:15 p.m. Wednesday on Millersport Highway near the 990 was pronounced dead at the scene of the accident.

Amherst police said the victim, Mallory A. Greene, drifted off the northbound lane of the highway and collided with the southbound vehicle driven by Thomas E. Flynn, 57, of Amherst.

Flynn was taken to Erie County Medical Center in Buffalo by Mercy Flight. Portions of nearby roadways were closed to traffic for several hours after the collision.

Flynn was still being treated Wednesday evening in the ECMC emergency room for serious injuries he suffered.

Amherst Police Capt. Patrick McKenna said witnesses reported that Greene’s vehicle began drifting out of its lane before the crash.

Firefighters from the Getzville and Swormville fire companies helped Amherst police.

Anyone with information is asked to contact Amherst police at 689-1311.