Gordon Brown is expected to announce on Monday evening that he is standing down as an MP at the next election.
The former Labour prime minister will confirm in a speech that he does not intend to run again in his Fife constituency of Kirkcaldy and Cowdenbeath.
His retirement from parliament had been rumoured for weeks after he played a leading role in the Scottish referendum campaign but then ruled out any possibility of standing to be the leader of Scottish Labour.
Brown was chancellor for a decade from the start of Tony Blair’s premiership in 1997 to the day when he took over as prime minister in 2007, before losing the job to David Cameron at the last election.
He has been an MP since 1983, representing Dunfermline East until 2005, when he took on his current seat after boundary changes.
More details soon…