Jamie Lynn Spears caught on camera brandishing large knife in sandwich shop brawl

Popstar Britney Spears’ little sister Jamie Lynn has been reportedly caught on camera wielding a large knife to break up a fight in a US sandwich shop.

Video obtained by TMZ shows the younger Spears running behind the counter of the Pita Pit in Hammond, Louisiana after her friend reportedly became involved in a brawl.

The 23-year-old singer was in the sandwich shop with friends after a night out celebrating a friend’s birthday, the New York Daily News reports.

The footage shows Spears walking behind the counter and grabbing a long knife, which she brandishes over the counter at a group of people before being stopped by an employee of the store who appears to be on the phone.

Police reportedly attended the scene shortly afterwards but no one is believed to have been arrested.