Birmingham Yardley MP Jess Phillips drops out of the UK Labour Party leadership race.
Shadow Treasury Minister Clive Lewis announces his candidacy to succeed Jeremy Corbyn as Leader of the Labour Party. He is the second person to make this announcement, after Shadow Foreign Secretary Emily Thornberry.
Members of the UK House of Commons vote to elect a new Speaker of the House, replacing the retiring John Bercow. The Labour Party's Sir Lindsay Hoyle defeats Chris Bryant in the fourth and final ballot.
British MP Ian Austin quits Labour over a "culture of extremism, anti-semitism and intolerance" within the party under Jeremy Corbyn, becoming the ninth Labour MP to quit this week. However, unlike the others, he will not be joining The Independent Group.
Three British MPs – Anna Soubry, Sarah Wollaston and Heidi Allen – defect from the Conservative Party to The Independent Group, citing their opposition to Brexit and the party's adoption of UKIP policies. This brings the total number of The Independent Group MPs to eleven following recent defections from Labour.
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.