A boy spent his fourth birthday today (Thursday) in hospital in critical condition after he was hit by a bus in Kentish Town.

Amir Ardalan Motahhar suffered a broken pelvis and thigh bone in the collision yesterday (Wednesday) at 5.50pm. He was rushed to hospital where he went under the knife and he is still in a critical condition today.

Amir, who lives near Kentish Town, was with his dad and older brother when he was hit by the single-decker bus which stayed at the scene in Southampton Road.

Passers-by and passengers offered to help and police are appealing for these people come forward.

Sergeant Dave Tanner, from the Metropolitan Police’s Collision Investigation Unit, said: “We are keen to trace motorists and pedestrians who were in the area at the time as they may be crucial witnesses to the investigation, along with anyone who stepped forward and offered to help Amir’s father.

“Anyone who can assist is asked to come forward as soon as possible.”

Witnesses are asked to call the Alperton team on 020 8998 5319 or call anonymously on 0800 555 111.