Solange Knowles has been caught on camera attacking sister Beyoncé's husband Jay Z.
The incident was captured on CCTV footage obtained by American website
TMZ and shows the 27-year-old violently assaulting her brother-in-law.
Jay Z, Beyonce and Solange enter an elevator at the Met Gala Ball in New York on May 5th before Solange launches at the rapper, kicking and swinging her legs.
A bodyguard attempts to restrain Solange, as sister Beyoncé stands by watching without getting physically involved.
Upon closer inspection of the video, the bodyguard can be seen hitting the emergency stop switch on the 12th floor, presumably to keep the events private.
The three exit the building together into a sea of paparazzi. Sister Beyoncé and Solange get into one car while security walk Jay Z to another vehicle.
