A man who threatened to stab an elderly woman in a knife-point robbery has been jailed for three years and four months.

Gavin Jarvis threatened the customer and assaulted a member of staff in a newsagent's with a knife before stealing cash from the till.

Balaclava-clad Jarvis, 29, of Palmer Avenue, Gravesend, entered the Livingstone Road store at 8.40pm on May 13.

Officers later recovered CCTV showing him leaving the shop and walking towards Nansen Road. He is seen discarding the knife into bushes at 8.44pm.

It was later recovered by officers along with a distinctive blue jacket worn by Jarvis during the robbery.

Further CCTV also showed Jarvis walking out of an alleyway wearing a grey and black hooded jacket. This item of clothing was later found discarded nearby by officers.

Jarvis is then seen walking along Dunkirk Close at 8.45pm in a white t-shirt with the same black tracksuit bottoms worn during the incident. In the footage he appears to be counting cash.

Following inquiries, including the use of forensic work, Jarvis was arrested on Monday, May 30. He was later charged with robbery and possession of a knife in a public place.

Jarvis admitted the charges and was jailed for three years and four months when he appeared at Woolwich Crown Court on Monday.

Investigating officer, PC Emma Laimbeer, said: "This was a frightening incident for those involved and Jarvis went to great lengths to try to conceal his involvement by discarding several items of clothing afterwards.

"Not only did he threaten a shop worker before stealing money, but he threatened to hurt an innocent elderly customer who was going about her daily business.

"Our robust inquiries led to Jarvis being successfully charged and ultimately being jailed for his offences."