Police are growing increasingly concerned for the welfare of a teenager who went missing on her way to school last week.

Margaret Etchell-Thomson,13, who lives in the Preston Park area of Brighton, has not been seen since 7.45am on Wednesday when she left her home to go to school.

She was wearing her school uniform of black trousers, black jacket and white shirt and was carrying a black rucksack.

She is described as black, and 5ft 2ins tall.

Anyone with any information should call Brighton Police on 0845 60 70 999.