Two of the candidates standing to be West Yorkshire's Police and Crime Commissioner have branded Chief Constable Sir Norman Bettison's position "untenable" after allegations about his involvement in a police cover-up of the Hillsborough disaster.
Labour candidate Mark Burns-Williamson and Conservative Geraldine Carter have said he should go.
Until recently Mr Burns-Williamson was the Chair of the West Yorkshire Police Authority.
It is understood the Authority will discuss Sir Norman's position at a meeting tomorrow.
He has been referred to the police watchdog, the Independent Police Complaints Commission.
The candidates standing are:
- Mark Burns-Williamson - Labour
- Geraldine Carter - Conservative
- Cedric Christie - Independent
- Andrew Marchington - Liberal Democrat
Read the Independent Police Complaints Commission statement following the resignation of Sir Norman Bettison
Read the full statement from West Yorkshire Police Authority about the resignation of Sir Norman Bettison.
Sir Norman Bettison resigns and says he never blamed Liverpool fans for the Hillsborough tragedy.