Following his declaration that he would be leaving Kilmarnock at the end of the season, the Rugby Park side have relieved manager Allan Johnston of his duties.
The 41-year-old had announced on Thursday that he would quit Kilmarnock at the end of the season with the sale of Robbie Muirhead to Dundee United a major factor in his decision.
A club statement, read: “The board of directors would like to express its thanks to Allan Johnston for his diligent service over the last eighteen months. Allan kept the club in the Premiership last season by recording crucial end of season victories and an excellent start to the current league season raised expectations.
“Unfortunately, a number of injuries to key players and a series of poor results followed and although the club sits in eighth place in the Premiership, Allan decided to announce his decision to leave the club to the media on Thursday.
“Allan will stand down as manager with immediate effect and the board has therefore appointed assistant manager Gary Locke as interim manager pending a permanent appointment. Alan Robertson will provide support as Gary’s assistant.
“Applications for the post of manager are invited and will be considered by the Board over the coming weeks.”
Assistant manager Gary Locke will take charge of the side for Saturday’s game against Hamilton.