He is described as white, of medium to heavy build, wearing dark clothing with a black hat or hood and a sleeveless, yellow high-visibility jacket.

BBC: Colin Hall

The suspect is described as white, aged in his late 20s to early 30s, of medium build and was wearing a light coloured top and dark jeans or jogging bottoms.

BBC: Nicola and Peter Hart

Detectives said they believed the suspect was white, of medium to heavy build, and was wearing dark clothing with a black hat or hood and a sleeveless, yellow high-visibility jacket.

BBC: Colin Hall