Police are investigating after a man allegedly pulled out a knife and threatened train staff.

The suspect is said to have tried to push through the barriers at Gravesend railway station at around 3pm on November 5 but was stopped by a worker.

The man then allegedly pulled out a knife from his bag and threatened and shouted at the member of staff.

Officers believe the man in the CCTV image may have information which could help with their investigation.

Anyone who recognises him is asked to contact BTP by texting 61016 or by calling 0800 40 50 40, quoting reference 2400139265.

Alternatively, contact Crimestoppers anonymously on 0800 555 111.