SHOP workers were threatened with a knife during an armed robbery in St Neots on New Year's Day. Two men were involved in the robbery that took place at about 9.40pm on Thursday (January 1) at the Spar shop in Cambridge Road. One of the men stood in the doorway while the man with the knife walked up to the counter, threatened two female members of staff and demanded money. The women explained that there was not any money and the men left empty handed. The man with the knife is described as wearing white tracksuit bottoms, a beige top, grey gloves and a striped scarf. His accomplice is described as white and was wearing a black and grey checked top, a black hat, grey Nike tracksuit bottoms and white trainers. DC Louisa Barry, investigating, said: "This was a frightening experience for the two members of staff and it is vital we trace these men. "I would like to hear from anyone who was in the Cambridge Road area and witnessed the incident." The following day (January 2) a Cambridge man suffered serious injuries during an armed robbery in Dry Drayton. The incident took place at just after 10pm as the 36-year-old was finishing work at the BP Express Garage in St Neots Road. Two men, wearing balaclavas, - one of whom was carrying what is described as a wrench - entered the shop, at which point the victim ran into the back room. The men forced their way in and assaulted the man, knocking him to the ground. They then attempted to steal money from the tills but left empty handed. The victim suffered serious but not life threatening injuries and was taken to Addenbrooke's Hospital in Cambridge. The men are described as white, 20 to 30, slim to medium build and wearing dark clothing. Police have said they are not linking the two armed robberies. INFORMATION: Anyone with information is asked to contact police on 0845 4564564 or Crimestoppers, anonymously, on 0800 555111.