Detectives in Greenwich are investigating after an elderly man was robbed at gunpoint in Woolwich.

Police have released a CCTV image of a man they wish to speak to in connection with the crime.

After taking out a substantial amount of money from a bank on Woolwich New Road, the victim - a man aged in his early 70s - returned to his van in the Wilkinsons car park at around 10.15am on January, 7.

He was approached by the suspect, who got into the car and pulled out a black handgun, before ordering the victim to drive.

They drove past the Woolwich Ferry and turned into Farmdale Road, close to the flyover for the A2, Blackwall Tunnel approach.

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The suspect forced the victim to stop the van before stealing the money and running away.

Detectives from Greenwich are investigating and would like to speak with anyone who either saw the suspect get into the van at the car park, or running away from Farmdale Road.

The suspect is described as black, aged in his early 30s, 6ft 2ins tall and of athletic build.

He was wearing a black coat and had a scarf over his face.

Anyone with information is asked to contact police via 101 or Crimestoppers anonymously on 0800 555 111.