It's being linked to a similar robbery that happened a week ago.
Police are appealing for information following an armed robbery in Bradford.
At about 8.15am Thursday three males entered McColls in Allerton Road and made demands for cash and cigarettes. One of them was carrying what was believed to be a machete.
The men escaped with around £150 in cash and a large quantity of cigarettes before driving off in a car which was possibly a Vauxhall Corsa.
Police are linking this incident with a similar raid at the same location at around 7am on 21st December, when two males, one with what was thought to be a machete, took a smaller amount of cash and cigarettes.
Local officers have increased patrols in the area following the most recent incident.