UK officials say Alexei Navalny was killed with a rare amphibian‑derived neurotoxin, indicating banned chemical weapons held by a hostile state. The PM will press allies for tougher sanctions, tighter export controls and accountability measures.

David Lammy says he warned the PM about appointing Peter Mandelson before a scandal erupted. Allies say the PM is devastated and weighing his future, as potential rivals, including Wes Streeting and Angela Rayner, test support. Party MPs fret over fallout and possible leadership contest.

The PM urged a senior royal to give full evidence to US Congress about links to a late financier accused of abuse, saying there is a duty to victims and the public. He called for voluntary co‑operation to support justice and rebuild trust as scrutiny intensifies.

Labour is split over Andy Burnham’s bid to return to Westminster. The Manchester mayor needs a safe seat, with selections influenced by allies of the PM and the party executive. Supporters see an electoral asset; critics fear a leadership rival. A decision on his route back is pending.