A 22-YEAR-OLD man has died after a single-vehicle crash on the Hume Highway at Gundagai on Sunday morning.

Emergency services were called to the scene of the accident, near Jessops Lagoon Road, but the man died at the scene.

Initial investigations by police suggest his Hyundai Elantra veered off the road and hit a railing.

No one else was injured as a result of the accident.

The Gundagai crash was one of four separate fatal accidents around NSW on Sunday.