Police are hunting a gang of up to a dozen men and women who left a passenger on the London Underground fighting for his life.

Police say the victim suffered a fractured skull and swelling on the brain in the 'unprovoked attack' by the group on Sunday morning.

They are appealing for witnesses to the incident at Oxford Circus station at around 11.15am on November 5.

Officers say between eight and 12 men and women attacked the victim and a friend.

Officers would like to speak to these men in connection with a vicious attack on the the London Underground on Sunday

A group of a dozen men and women left the passenger in a 'life threatening' condition. These are more of people police want to speak to

They left the southbound Bakerloo line and attacked two white men, leaving one in a 'life-threatening' condition' and the other in hospital.

The victim is being treated for bleeding and swelling on the brain and a fractured skull. He remains in hospital in a 'life-threatening and life-changing' condition.

The second man was treated in hospital for cuts to his head, but has since been discharged.

British Transport Police (BTP) officers want to speak to the people in the CCTV images as they believe they may have information that could help with the investigation

British Transport Police (BTP) officers want to speak to the people in the CCTV images as they believe they may have information that could help with the investigation.

Detective Inspector Gabriel Oresajo, of BTP, said: 'This was an unprovoked attack on two men who were going about their travel.

'Everyone has the right to travel on the rail network without fear of crime..

'I am keen to speak to anyone with any information, no matter how big or small the detail may seem.'

If you have any information please contact British Transport Police on 0800 40 50 40 or text 61016 citing 195 of 05/11/17.

Two more people who were caught on CCTV in Oxford Circus station who British Transport Police (BTP) officers want to speak to