Police are investigating after a person was filmed holding a large knife while clinging on to the back of a moving bus in Brighton. 

Video, shared widely on social media, showed the knife-wielding individual standing on the edge of the 79 bus, shuffling their hands and feet around, before smacking the knife against an advertisement three times. 

It is unknown when or where exactly in Brighton the incident occurred. 

The video sparked alarm and raised significant safety concerns, with Sussex Police now working with Brighton and Hove Buses to identify the individual involved.

Police have appealed for public assistance in gathering information or additional footage of the incident. 

“We are urging anyone who witnessed this incident, has video evidence, or recognises the person in question to come forward immediately,” a Sussex Police spokesperson said.

Anyone with information is encouraged to make a report online or contact the police directly by calling 101, referencing serial 1093 of 29/07.