A group of teenagers allegedly wearing balaclavas entered a McDonald’s in Sutton High Street before brandishing some “large sized” knives.

One social media user claimed they were forced to flee the scene after the teenagers, aged around 16 or 17 years old, “came charging” into the fast food restaurant.

They also alleged that the suspects reportedly began throwing their weapons towards them and their friend.

The post read: “So last night could of [sic] ended in such a different way.

“To be sitting in McDonald’s with my mate, to literally running up the high street for your life, was so scary.

“A group of young black boys, aged around 16, 17, came charging into Sutton McDonald’s last night [March 8] around 9pm wearing balaclavas.

“They all had large sized knives on them which they started throwing towards me and my best friend.

“Please be aware of what’s going on around you as you really do never know! Stay safe around Sutton also.”

Video footage has also been published online which appears to show knives on the floor of a McDonald’s restaurant, however, it's unclear whether they are same ones which were reportedly used in the incident.

Scotland Yard confirmed police were called to reports of males armed with knives shortly before 9pm on March 8.

A spokesman for the force said no suspects were found following a search of the area, nor were there any reported injuries.

A McDonald’s spokeswoman said: “The safety and security of our staff and customers if of the utmost importance to us.

“We will continue to work with the police on any investigation on this incident.”

Witnesses, or anyone with information, are urged to contact police on 101.