Detectives are probing two robberies by armed masked men on licensed premises in Leeds.
They are looking for similarilities beteen the attacks which were staged at a club and pub in Leeds.
Police said that they were investigating whether there was a direct criminal link between the two offences.
However, yesterday officers said it was too early to say one way or the other.
In the first incident the victims were the New Headingley Club, in busy St Michael’s Road, Headingley, Leeds.
At 4am on Monday of this week, three masked men entered the premises of the popular club.
Once inside they threatened the 29-year-old steward of the club with a knife. They forced him to open the club safe and stole a large quanity of cash kept inside.
The masked robbers then tied the man up. and left him bound before escaping into the night.
The steward managed to free himself fairly quickly and called the police.
Those raiders who struck in Headingley wore balaclava masks to hide their faces.
Two days later, on Wednesday of this week at around 11.25pm in the evening two men, one believed to be armed with a machete, entered the Queen pub in Oldfield Lane, Wortley, Leeds.
Staff who work in the pub were cleaning up the premises after the night’s business.
The men threatened the staff and on this occasion grabbed cash from the till before running out of the premises into Oldfield Lane.
They were described as aged in their late teens to twenties and both were wearing dark clothing.
Anyone who witnessed either of the robberies or any person with information that could assist police in helping to track down the robbers is asked to contact North West Leeds CID.
They should call using the non-emergency number 101, or alternatively call Crimestoppers on 0800 555 111 where their information will be treated confidentially.