Police in London have launched an urgent appeal to find a missing 10-year-old boy who requires medication and is at risk of falling into a coma if it is not administered.

Malakhi Chijiutomi-Ghosh has not been seen since he ran away from his home at around 1am on 31 March. The 10-year-old suffers from adrenal hyperplasia, which requires medication three times a day.

Police said it is "vital" he is found soon so he can be given his medication. It is believed he has not taken it and officers warn there is a "very real chance" he may have already fallen into a coma.

Malakhi does not have a mobile phone, an Oyster card or any money with him, police believe. His home is in Thornton Heath, south London, and he is said to have connections in Victoria and Croydon.

He is described as a light-skinned black male, 4ft 7ins tall of slim build with short black curly hair. He is wearing the dark coat and hat shown in the picture (above) with a long sleeved red/orange top with a picture of a meercat playing the drums on it.

Chief supt Andy Tarrant, Borough Commander for Croydon, said: "We need the public's help to find Malakhi. His going missing is completely out of character and was unexpected. He left his home this morning, without a mobile phone, no oyster card and we don't think he had any money.

"Malakhi was last seen on CCTV at 07:30 this morning in Thornton Heath High Street, junction with Grange Road. His family has told us that Malakhi loves trains, so based on where he was last seen it's possible that he was heading to the train station.

"Officers are carrying out searches in Grange Wood Park, tracing CCTV and speaking to people that live by to Malakhi's house.

"I would like to reach out to Malakhi and say - please get in touch with us, we are worried about you and want to make sure you are ok. You are not in trouble. Your mum, dad and brother are really worried about you and want you to come home and make sure you take your medicine."

Anyone who has information should contact Croydon Police via 101.