UPDATE: Murder investigation launched in Westminster

A murder investigation is ongoing following an incident in Westminster.

Police were called at 22:40hrs on Tuesday, 4 June to reports of a fight on Bell Street, at the junction with Edgware Road, NW1.

Officers responded and found a man suffering from a knife wound injury.

They administered CPR before London Ambulance Service paramedics arrived.

Sadly, despite the best efforts of emergency services, the man - aged 19 - died at the scene. His next of kin have been informed and are being supported by specially trained officers.

A post-mortem examination held on 6 June found cause of death was a single stab wound to the heart.

Three men – [A] aged 22; [B] aged 26; [C] 24 – were arrested on suspicion of murder. [A] and [C] have been bailed pending further enquiries, [B] has been released with no further action.

Enquiries into the circumstances are progressing, including into reports that at least one gunshot had been fired.

Any witnesses or those with images and video that could help police should call 101 or get in touch with @MetCC reference CAD 8545/04Jun.

To remain 100% anonymous contact the independent charity Crimestoppers on 0800 555 111.