Police have released CCTV after a man was left with serious injuries following an assault in Trafalgar Square.

Officers were called at around 12:40am on Saturday 3 June to reports of a man collapsed after being assaulted.

London Ambulance Service attended and treated the man, aged 50, before taking him to hospital - he remains there in a critical but stable condition.

The victim was assaulted in the area outside the National Gallery - no weapons were involved.

Credit: Met Police