A six-year-old girl who was hit by a car on Christmas Day has died in Great Ormond Street Hospital.

Fatima Mahamud, of Somali origin, was out for a Christmas walk with her mother and another relative when she was badly injured in a collision with a red Toyota Carina.

Police are searching for a car with registration number N168 HRK.

Sgt Paul Cleevley of the Collision Investigation Unit said, "We still need to identify who was driving this vehicle at the time of the collision. It is vital that we trace the Toyota as soon as possible. I urge anyone who has any information to contact me".

Anyone with information is asked to call Traffic Police at Scratchwood on 020 8733 4684; or, to remain anonymous, Crimestoppers on 0800 555 111.