Police have released footage in a bid to identify those responsible following the robbery at the Tesco shop in Camden on 1 October
Detective Constable Will Wigzell, from the Met Police: said: “This was a very frightening experience for the victims involved, thankfully none of whom were injured.
“These are very serious offences, and we are keen to identify those responsible as soon as possible.”
One suspect was described as Asian, 6ft, aged in his 20s, wearing black clothes, including tracksuit bottoms with grey pockets.
The other suspect was described as Asian, 5ft 7ins, around 20 to 30-years-old and wore all black, including a hoodie with a “MYPROTEIN” logo.
There was no available description of the third suspect.