Driver critically hurt after driving off Lake Shore Drive near Diversey Harbor

A man was critically injured in a crash Monday on Lake Shore Drive near Diversey Harbor on the North Side.

The 26-year-old man was driving north when he lost control of his car at 7:54 a.m. in the 2500 block of North Lake Shore Drive, according to Chicago police.

The car hit the median, causing it to veer across the lanes, off the road and down an embankment, police said. The car hit a tree and a gate, which stopped it from going into the water.

Two medical professionals on the nearby bike path treated the victim until emergency crews arrived, police said. The man was taken in critical condition to Illinois Masonic Medical Center.

Jeffrey A. Linder, chief of general internal medicine at Northwestern University’s Feiberg School of Medicine, witnessed the aftermath of the crash and posted a photo of the scene on Twitter.

Linder wrote that a Loyola Medicine night shift nurse driving home from work saw the crash and pulled over to help the driver until paramedics arrived.