Human blood has reportedly been found on a toy car and sandal believed to have belonged to toddler Ben Needham, who disappeared on Kos 26 years ago.

Kerry Needham said the discovery is evidence of a cover-up in the disappearance of her son, who was staying at his grandparents' farmhouse on the Greek island.

She fears the 21-month-old was killed and his body moved before British police began searching the site last year.

South Yorkshire Police formally ended a search on the Greek island last October, saying they believe Ben died as a result of an accident involving a digger on July 24 1991.