Detectives from the Metropolitan Police’s Flying Squad are investigating an armed robbery in Sutton on Sunday.
A group of men wearing balaclavas and white overalls entered The HG Wells Pub on Cheam Common Road at around 10:00pm.
One man was carrying a handgun and others were armed with knives.
The suspects stabbed a member of staff in the leg, before locking bystanders in a room and attempting remove the safe.
The suspects, who were described as black, then made off with some stolen cash in a silver Vauxhall Astra.
There have been no arrests so far.
Any witnesses or anyone with any information is asked to call Flying Squad detectives 0208 785 8655 or via Twitter @MetCC.