A 21-year-old Lexington woman has died of injuries she suffered in a crash Friday on Delong Road, according to a coroner's report released Wednesday.

MacKenzie B. Hertweck died of brain injuries about 11:30 p.m. Tuesday in the intensive-care unit at University of Kentucky Chandler Hospital.

Hertweck was a passenger in a vehicle that crashed on Delong Road near Tates Creek Road, according to the coroner's office.

Jeremy Arvin was the driver of a black Nissan 370Z that hit a tree about 10:30 p.m. He also was taken to UK Hospital, but his condition improved.

Police said previously that alcohol use was suspected; the car also was traveling at high speed.

The impact left the car a pile of twisted metal, cracked the tree trunk and knocked down a large branch, which blocked Delong Road.

Wood and car parts were strewn along the road and in yards surrounding the wreck. A headlight fixture from the car rested against the mailbox at 3888 Delong, more than 100 yards from the crash site.

It took firefighters longer than usual, about a half-hour, to cut the man and woman out of the car because of the extensive damage to the car, Lt. David Biroschik said previously.