The latest victims of the party’s culling are Scottish Labour’s Ian Murray and MP for South Shields Emma Lewell-Buck. The Unite union is currently pushing to deselect Mr Murray as a candidate in the next general election, according to the BBC.
The MP for Edinburgh South was Labour’s only Scottish MP between 2015 and 2017.
Mr Murray has also been a staunch critic of Mr Corbyn’s over the years.
The Scottish MP has said he is “disappointed” with Unite’s priorities.
He said: “It is disappointing that in the week where I’m leading the People’s Vote campaign in Scotland…that this is Unite’s priority.
“My constituents are my priority and I won’t be distracted from fighting for them.”
Allies of Mr Murray have said the efforts to de-select the MP have come from a central level at the union, not from the local branch.
Mr Murray’s fate within the party will be decided on Thursday.
Ms Lewell-Buck is appealing against her party’s move to deselect her as the candidate for South Shields.
The MP for South Shields has now launched an appeal with the national Labour Party over “irregularities” in the way the votes were conducted, according to ITV News.
Some of the irregularities include a local councillor filling out a ballot paper for another member, local councillors attending “trigger” meetings when they are not allowed to, and the harassment of party members.
The fourth branch of South Shields to vote saw a tied vote.
But when the vote was re-run Ms Lewell-Buck lost by one vote.
Her complaint will mean Labour has to stop the re-election process while her claims are investigated by the party.
A Labour Party source said: “We’re confident the vote was conducted in line with our rules and procedures.
“The trigger has come from the right in the CLP, not the left. Triggers are about democracy and many members wish to hold selections so they can have a say in who represents them.”
A trigger ballot allows local members of the Labour party to choose between reselecting their MP as a candidate for the next general election or have an open selection process where a new MP will be voted for.
A Labour source said of Ms Lewell-Buck’s request to meet Mr Corbyn: “Jeremy Corbyn does not oversee internal processes so it would not be appropriate for him to be involved.
“Jeremy has met Emma several times previously.”