Leeds Central MP Hilary Benn has been sacked as shadow foreign secretary by Jeremy Corbyn after he planned to spearhead a coup against the Labour leader.
It is expected up to half of the shadow cabinet could resign in reaction to the decision.
The MP for Scunthorpe Nic Dakin has resigned from the Labour Front Bench after "further failure of leadership" from Jeremy Corbyn at today's PLP meeting.
Angela Eagle is to launch her Labour leadership contest on Monday, but how does it work?
Labour leadership challenger Angela Eagle has told Peston on Sunday that she is fighting to save her party.
Labour has descended into crisis as several high-profile members of the shadow cabinet have quit in the past few hours. Here's who they are.