Police are searching for ten-year-old twins who disappeared from their carers after a trip to a fair.

Benjamin and Brendon O'Connell, who are in the care of social services, ran off at Wellingborough fair in Northamptonshire on Saturday.

The boys have run away before and could be in the Northampton area where they have family, said police.

Benjamin was in Wellingborough visiting Brendon but the youngsters ran off from the staff who were accompanying them and have not been seen since.

They are 4ft 10ins tall, stocky, with short, dark brown hair and brown eyes.

Benjamin, who was living in Herefordshire, was wearing a white T-shirt with a Pokemon motif on the front, blue trousers with white stripes down the sides and silver-grey trainers.

He has an ear-ring in the top of his left ear and scars on his right eyebrow and right upper arm.

Brendon was wearing a light blue top with the word Lotto on the front, blue shorts and white Nike trainers.