Rihanna's bodyguard was reportedly involved in a physical altercation with the paparazzi.
According to TMZ.com, a photographer got too close to the We Found Love superstar while she was in London on Sunday (24 June), and was punched by one of her security team.
A video posted on the gossip site shows Rihanna exiting a nightclub in Mayfair and being led through a crowd of paparazzi photographers to a waiting car.
After Rihanna climbed into the vehicle, her bodyguard swung a punch at a man angling for a better shot of the star.
Rihanna was in London to perform at Radio 1's Hackney Weekend, and has been working on new material during her stay in the English capital city.
It is not the first physical fight Rihanna is said to have started this month.
Her ex-boyfriends Chris Brown and Drake were involved in a brawl at a nightclub in New York on 15 June, continuing the feud started by Drake's alliance with the pop star after her breakup with Brown.