A 20-year-old man is in critical condition in a London hospital following a dirt bike accident at Middleton Saturday evening.

Norfolk OPP said the man was performing a jump when he lost control of the bike.

Police were called to Gopher Dunes on Highway 59, just before 10 p.m. but the accident happened a few hours earlier.

The man was first taken to Tillsonburg District Memorial Hospital and then taken by air ambulance to the London Health Sciences Centre. He has life threatening injuries.

Police continue the investigation with the help of technical traffic collision experts.