Police have been continuing their search for a man who went missing after failing to return to a secure hospital unit.

Eastern Daily Press: John GladstoneJohn Gladstone (Image: Archant)

John Gladstone, who has convictions for robbery and firearm offences, was seen in a shop in Thetford today.

Gladstone, 34, had been believed to have been camping out in the Diss area.

He failed to return to a secure hospital ward in Ipswich on November 1.

Gladstone is of mixed race, 5ft 10in, of heavy build, and with short black hair.

He was wearing full camouflage clothing, with a camouflage backpack and black boots when he was seen in Thetford.

Gladstone is subject to a detention under the Mental Health Act and is on a life licence following his convictions.

Call police on 101.