Police are growing increasingly concerned for the welfare of a missing pensioner who suffers from dementia.

Derrick McFarlane, 82, of Walthamstow has not been seen since 9.30pm on Friday.

Police say Mr McFarlane, who is described as black, 5 feet 3 inchees tall and of medium build, is "vulnerable" and struggles to walk without a stick. 

When last seen he was not dressed appropriately for the cold weather, wearing only a dark pyjama top and tracksuit trousers. He did not have any shoes.

Anyone who has seen Mr McFarlane is asked to contact officers at Waltham Forest via 101 or tweet @MetCC.