LYMAN — A New Hampshire man remains in critical condition following a head-on crash on Route 111 in Lyman.

The crash happened Saturday at 4:45 p.m. when Gregg Lewis, 62, of Alton, N.H. who was driving east in a 1995 Nissan Maxima, fell asleep at the wheel and collided with a 2006 Hyundai Elantra driven by Brittany Cunningham, 22, of Northwood, N.H., said the York County Sheriff’s Office.

Lewis’ car rolled over and he had to be extricated, then taken to Maine Medical Center.

Cunningham and three children who were in her car, ages 2, 4, and 16, were taken to Southern Maine Medical Center with injuries that were not life-threatening.

Route 111 was closed for several hours.