Nottingham Forest's new owners have decided to part company with manager Steve Cotterill.
The Kuwaiti-based Al-Hasawi family took control of the Championship club on Tuesday and have acted quickly to put their new structure in place.
Cotterill leaves just nine months into the three-and-a-half-year deal that he signed when he replaced former England manager Steve McClaren in October.
A statement on the club's official website said: "Nottingham Forest can confirm that manager Steve Cotterill has departed the club with immediate effect.
"Mr Cotterill met with the club's new owners, the Al-Hasawi family, and after long deliberations they have decided to make a new appointment in a bid to deliver their long-term vision.
"The club would like to acknowledge their gratitude to Mr Cotterill for guiding it through an extremely difficult and traumatic period and for retaining the side's Championship status last season. The club will be making no further comment at this time."
Former Tottenham manager Harry Redknapp has emerged as one of the bookies' favourites to fill the vacancy.