The mother of a toddler who went missing in Greece 25 years ago has said police now fear her son could have been crushed by a digger in a fatal accident.

Kerry Needham, whose son Ben vanished in 1991, said police had visited her and told her to "prepare for the worst" as they plan a new search for the boy's body.

Mrs Needham has always believed her son is still alive and refused to give up hope of finding him. She said she "does not want to accept" that her son may have been killed.