CCTV pictures have been released after a fight on board a bus in Streatham

On Thursday, just after 4.40pm, police were called after two men boarded the 250 bus armed with fire pokers, and attacked a third.

They fled when they heard sirens approaching.

Anyone with information about the identity of those involved should call 101, giving the reference 5152/03FEB.

Information can also be provided to the independent charity Crimestoppers, anonymously, by calling 0800 555 111 or visiting www.crimestoppers-uk.org