A mystery ‘celebrity actor’ is being investigated by police over allegations of historic sex abuse, it has been revealed.

Claims against the television star, whose identity is being kept secret, are being looked at by Lancashire Police, who are also investigating care home staff, priests and a teacher accused of abusing a pupil.

The probes, revealed in a report by the Lancashire Safeguarding Children Board, are being carried out as part of Operation Fervant, the national inquiry into alleged sex abuse by celebrities or people in positions of trust.

The report, submitted to Lancashire County Council on July 17, said: ‘On-going cases include historic sexual abuse perpetrated by priests, care home workers and preliminary enquiries into possible offences committed by a celebrity actor and a teacher accused of sexually abusing a pupil in 1997.’

Jane Booth, the board’s independent chair said as the probe was ‘a live investigation’ she could not provide further details.

In a statement, Lancashire police said: ‘We have a team of specialist officers working on investigations into historical allegations of child abuse with a specific focus on victims abused at the hands of persons in positions of public prominence or who have been abused in ‘institutions’.