UPDATE - British Transport Police say they are no longer looking to identify the two men to help them with their investigation.

POLICE want to find these men after three passengers were assaulted on a tram in Birmingham.

CCTV images of the men have been released after an incident in which two men assaulted three passengers after being asked to keep their voices down.

It happened at around 10.30pm on Tuesday January 24.

The men got on the tram at Grand Central, in the city centre.

A spokesperson for British Transport Police said: "A passenger on the tram asked the two men to keep their voices down and a verbal altercation took place.

"The two men then punched and assaulted three passengers in an unprovoked and violent attack."

Investigating Officer PC Genna Chambers said: "We would like to talk to the two men shown in the CCTV images as we believe they may have information that can help our investigation.

"We also appeal to anyone else on the tram who has information regarding the incident to come forward."

If you recognise the men, or have any information, please contact BTP by texting 61016 or calling 0800 40 50 40 quoting reference 2300008957.

Alternatively call Crimestoppers anonymously on 0800 555 111.