THREE masked men fled empty-handed after trying to hold up a Milnsbridge filling station last night.
All three ran from the Jet filling station in Scar Lane when they were challenged by a cashier and a second man inside the shop.
And in his haste to get away, one of the robbers tripped and fell before running off with his companions towards Sycamore Avenue.
Police said the raid was at 9.48pm. Three men, wearing balaclava masks, entered the garage shop.
One stayed at the door holding it open while a second, brandishing a knife, vaulted the counter.
He threatened the cashier and demanded money but another man in the shop intervened and the robbers fled.
Police have appealed for witnesses to contact the robbery team on 0845 6060606.
One of the robbers was black, 5ft 9in tall and of medium build, with a black anorak and black tracksuit trousers.
A second was white, slim and 5ft 9in tall with a dark coloured anorak with a red stripe on the back.
The third man was white, athletic, 5ft 9in tall and wearing a dark anorak and dark tracksuit trousers.