Police at Strand Road are appealing for information after a woman was robbed outside a bank in the Waterside area of Derry.
The incident occurred outside the Danske Bank at Altnagelvin at about noon on Monday.
A woman was entering the bank with a sum of money in a bag when a man grabbed it and ran off.
He is described as being about 5ft 8inches tall and of a slim build. He was wearing grey tracksuit bottoms, a black jacket and hat and a tartan scarf.
A number of men chased the man down Church Brae, but he made his escape through the gardens of houses.
Chief Inspector Ivor Morton said: “We would like to hear from anyone who saw the man running away, or noticed him in the Belt Road area beforehand. We believe he was in the area for a time before the woman arrived at the bank. She was not physically hurt in the incident.”