A man who smashed a display unit with a hammer and stole jewellery worth a five-figure sum has been jailed.

Simon Jacobs, of no fixed address, was jailed for two years and eight months after pleading guilty to the robbery on July 28.

After leaving the store Jacobs was chased by an off-duty detective, assisted by members of the public, and arrested on suspicion of robbery.

No-one was hurt during the incident.

On August 31 Jacobs was sentenced to 32 months in prison at Chelmsford Crown Court.

Essex Police are still looking for a second man in connection with the robbery, who entered the store alongside Jacobs and threatened staff with a tyre wrench.

Anyone with information is asked to contact Colchester CID on 101, quoting reference 42/208194/18.

You can also contact independent charity Crimestoppers, completely anonymously, on 0800 555 111 or online at Crimestoppers-uk.org