A knifeman, who held a large blade to the throats of a shopkeeper and his teenage son, is being hunted by the police.
This CCTV image of the suspect has been released by officers based in Hillingdon Borough, west London.
On Saturday, May 14, police were called at around 10.35pm to a report of a robbery at Taal Food and Wine in Field End Road, Ruislip.
CCTV footage taken from within the shop captured images of the suspect attacking the 49-year-old shop owner and his teenage son with a large kitchen knife whilst demanding money from the till.
A struggle broke out behind the confined space of the counter where the shopkeeper sustained serious lacerations to his hands as he tried to protect both himself and defend his young son, who had been pinned down in the corner of the shop.
The suspect held the knife to the shop keeper's throat and then to the teenage boy's throat, when he tried to escape.
The victim was taken to a west London hospital for treatment before he was later discharged.
Police are keen to hear from anyone who may recognise the man shown on CCTV.
Anyone with any information is asked to contact Detective Sergeant Peter Boyd on 020 8246 1732, quoting reference 0909609/16 or Crimestoppers anonymously on 0800 555 111.