Bulletin world briefing: Russia and Ukraine ‘frustrated’ and Philippines school shooting kills one

1. Why Russia and Ukraine both want Trump’s peace envoy gone
2. Philippines school shooting leaves at least one dead and four more injured
3. Russia begins voting in first parliamentary election since Ukraine invasion
4. Why Andrew and Tristan Tate are challenging their extradition to the UK
5. Passenger knocked unconscious during mass brawl on Mediterranean cruise ship

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