A callous thief swiped cash after rifling through a blind man's bag as he waited for a train.

British Transport Police are appealing for witnesses to come forward after the victim was threatened and robbed at Selling railway station at around 10.30am on Thursday, January 6.

Det Sgt Leigh Marshall said: "As the 57-year-old victim stood alone on the platform, he was approached by a man who he described as smelling strongly.

"Suddenly, the man produced what the victim understood to be a knife, holding it to his cheek whilst demanding money.

"As the victim explained that he did not have anything to give him, the man moved the knife to his throat then to his cheek again.

"The suspect took a small amount of change but returned it when the victim told him it was his train fare.

"The suspect then proceeded to search through the man's bag and took between £7 and £10 in change."

A 24-year-old man from Medway has been arrested and is on bail pending further enquiries.

Police are urging any witnesses to the robbery to contact them on Freefone 0800 40 50 40 quoting reference B5 of 11/01/2010.