South Gloucestershire Council leader John Calway resigns
The leader of South Gloucestershire Council, John Calway, has stepped down from the post.
Mr Calway has also quit his role as leader of the largest party on the council - the Conservatives.
In a statement to BBC Radio Bristol, the council said he had made the decision for "personal reasons".
Mr Calway is the councillor for Longwell Green. He became leader of the council in 2007 when the Tories took over the running of the hung council.
No one party has a majority in South Gloucestershire. The Conservatives hope their new leader, once he or she is elected, will also be leader of the council.