POLICE are appealing for witnesses to an attack on a bus.

A large group of youths of Somalian appearance boarded a 427 bus between Uxbridge and Hayes End on July 31.

They began shouting they were from a group called "MDP".

Most made their way to the top deck where seven men were robbed.

They were repeatedly punched during the attack, one suffering a broken hand.

Another was hit with a brick.

The group got off the bus near the old BP garage in Uxbridge Road, near the junction with Coldharbour Lane, opposite McDonald's.

Police want to hear anyone who may have seen the incident or the movements of the group after they left the bus.

Anyone with any information should call PC Devan Taylor at Uxbridge police station on 0208 246 1568 or Crimestoppers, anonymously, on 0800 555 111.