Thames Valley Police is appealing for witnesses after an attempted knifepoint robbery on Saturday.
At about 9.50am, a 24-year-old man was walking along the railway footbridge in Spenlows Road, Bletchley, when he was approached by two men.
One of the men grabbed hold of the victim and spun him around. The second man then approached him with a butterfly style knife in his hand. The victim panicked and punched the man that was restraining him in the face and ran away.
Both men are black and in their late twenties, about 5ft 6ins, with short afro hair.
The first man is medium build, clean shaven, with a styled goatee beard. He was wearing a black hooded top with three white stripes on the arms and dark blue tracksuit bottoms.
The second man is large build, clean shaven, and was wearing a green Umbro t-shirt and blue jeans with white trainers with straps on them.
Anyone with information should call the Thames Valley Police 24-hour non-emergency number 101 and ask to speak to Det Con Reynolds.
If you don’t want to speak directly to the police you can contact the independent charity Crimestoppers anonymously on 0800 555 111 or online at crimestoppers-uk.org.