Jeremy Corbyn, Leader of the Opposition, sacks Shadow Foreign Secretary Hilary Benn after Benn's support for a "no-confidence motion" after Corbyn's perceived poor campaign for Remain.
Seven Labour Party MPs (Chuka Umunna, Luciana Berger, Angela Smith, Chris Leslie, Gavin Shuker, Ann Coffey and Mike Gapes) resign from the party, forming a new independent group, in protest at Jeremy Corbyn's leadership, and "institutional anti-Semitism" within the party.
UK Leader of the Opposition Jeremy Corbyn of Labour asks to see "incontrovertible evidence" before accepting Russia was responsible. Foreign Secretary Boris Johnson responds, saying it is "quite extraordinary" to question Russian involvement.
Labour Party leader Jeremy Corbyn sacks Shadow Secretary of State for Northern Ireland Owen Smith after he called for a second referendum on European Union membership. He is replaced by Rochdale MP Tony Lloyd.
The Communist Party of Britain announces it will not field any candidates in the upcoming general election for the first time since its formation in 1920, and endorses Labour leader Jeremy Corbyn, saying victory for Mr Corbyn at the general election in June would be “the first step towards a formation of left-led government at Westminster”.
Joining their 12 colleagues from the day before, Luciana Berger, Angela Eagle, Maria Eagle, Kate Green, Nia Griffith, John Healey, Lisa Nandy and Owen Smith resign from the Labour Shadow Cabinet of Jeremy Corbyn, alongside 18 junior shadow ministers and 9 additional frontbenchers, while Angela Smith and Steve Bassam of the House of Lords leadership will boycott attending Shadow Cabinet meetings, all in protest at Jeremy Corbyn's leadership over the EU referendum, and the firing of Hilary Benn.
Heidi Alexander, Gloria De Piero, Ian Murray, Lilian Greenwood, Lucy Powell, Kerry McCarthy, Seema Malhotra, Vernon Coaker, Charlie Falconer, Karl Turner and Chris Bryant resign en masse from the Labour Shadow Cabinet of Jeremy Corbyn in protest at Jeremy Corbyn's leadership over the EU referendum, and the firing of Hilary Benn.
British Prime Minister David Cameron, under pressure from Labour Party leader Jeremy Corbyn and the Foreign Affairs Committee, will not ask for a vote by Parliament to join the U.S. airstrikes in Syria.
The outcome of the election for the next leader of the United Kingdom Labour Party is announced with Jeremy Corbyn winning the contest ahead of Yvette Cooper, Andy Burnham and Liz Kendall while Tom Watson is elected as the new deputy leader.