Kenny Shiels has resigned as Morton manager, just four days after his side's 10-2 drubbing away to Hamilton.
Despite the Greenock side being consigned to League One football for a number of weeks, former Kilmarnock boss Shiels had been given the backing of the Cappielow board.
However, the manner of Saturday's humiliation at New Douglas Park prompted the board to summon the 58-year-old for talks, where he is believed to have offered his resignation.
In a statement, the club said: "We confirm that, following the result against Hamilton on Saturday, Kenny Shiels has tendered his resignation. This has been accepted with regret by the board."
Shiels, who won four of his 20 games since replacing Allan Moore shortly before Christmas, said: "I am extremely disappointed things did not work out at Morton and I wish the club all the best."
Morton, who memorably knocked Celtic out of the League Cup at Parkhead earlier this season, won just six of their 36 matches in the Scottish Championship and finished a distant 14 points behind Cowdenbeath at the bottom of the table.