Police are appealing for information to trace a person believed to be involved in an assault in Westminster.

Police are appealing for information after a teenager was left with “life-changing injuries” following an assault.

The victim, who was 17 at the time of the assault, suffered stab wounds and a head injury during the incident in Gloucester Street, near the junction with Alderney Street.

Detectives are appealing for witnesses to an altercation involving a group of youths which appears to have happened close to the Churchill Gardens Estate shortly beforehand, and is thought to have continued to where the victim was found.

Police have issued a CCTV still of a person believed to be involved in the assault, which happened on Saturday, March 3.

Anyone with information call police on 020 8345 3865 or Crimestoppers anonymously on 0800 555111.

Five people were charged on Wednesday with conspiracy to commit violent disorder and conspiracy to commit grievous bodily harm with intent. They are due to appear at Westminster Magistrates’ Court on September 27.

Six people are bailed to various dates in October pending further enquiries.