Detectives are appealing for help to identify a man who stole a £5,000 diamond necklace from a jewellery shop in Wimbledon.

An image has just been released of a man the police would like to speak to in connection with the theft from Sinclair Jewellers in The Pavement off Worple Road.

A police spokesperson said a man went into the jewellers and asked to look at some jewellery for his mother.

When he was shown a chain by an assistant he snatched it and ran out into Worple Road then onto Wimbledon Bridge, the spokesperson said.

The suspect is described as a black, aged 25 to 30 years-old. He is about 5ft 10 inches and of medium build.

He had short shaved hair with small goatee beard and a round face.

He was wearing a long black coat with fur in the hood and a pocket on each breast, black trousers and shiny black shoes.

He had an African accent.

A man matching his description was later seen on CCTV in the town centre and he was later spotted running up towards Wimbledon Hill.

The necklace stolen on Tuesday, February 25 at 10.10am, was handmade, 18ct white gold, 18 inches long, with 5.5 carat round diamonds studded through the chain.

If you recognise the man in the image or have any information which may assist call Wimbledon Police on 101 or anonymously contact Crimestoppers on 0800 555 111 quoting the following numbers: Ref J/0140/43 URN 143543.