Chris Mason: All eyes on Downing Street - what does the PM say, and when? (opens original article in a new tab)

UK Prime Minister Sir Keir Starmer faces potential resignation as Labour Party pressures him, following Owen Burnham's by-election victory and internal dissent. Options include sacking dissenters or organizing a leadership contest.

• Third time in four years a UK PM may announce resignation due to party pressure not election loss
• Sir Keir Starmer faces potential leadership challenge from Owen Burnham following his by-election victory
• Labour Party considering options for leadership transition including sackings or structured contest