Anthony Knott: CCTV shows missing firefighter's 'distinctive' walk

London firefighter Anthony Knott has not been seen since he disappeared during a work night out more than a week ago.

The 33-year-old was touring pubs in Lewes, East Sussex, with colleagues on 20 December.

Sussex Police, which has been searching the River Ouse and a nearby outdoor swimming pool, hope Mr Knott's "distinctive walk" will jog someone's memory and help them piece together his movements.