Ukraine's security service says it has arrested the country's most senior pro-Russian politician, Viktor Medvedchuk. The opposition party leader had been under house arrest suspected of treason but fled shortly after the Russian invasion.
Ukrainian President Volodymyr Zelensky has said that Russian forces have faced "irreparable losses" since their invasion began 48 days ago.
Boris Johnson and Rishi Sunak have pledged to stay in post despite being fined by police for breaking lockdown rules in Downing Street in June 2020.
Russia has warned Finland and Sweden against joining Nato, arguing the move would not bring stability to Europe.
Emmanuel Macron has won the first round of the French election and far-right rival Marine Le Pen will fight him for the presidency for a second time.
Ukrainian President Volodymyr Zelensky has welcomed the latest wave of sanctions imposed on Russia, while also describing them as insufficient.
The number of civilian casualties may be much higher in Borodyanka and other liberated Ukrainian cities than Bucha, Ukrainian President Volodymyr Zelensky said in a video address on Monday.
US President Joe Biden has called for Russian President Vladimir Putin to be tried for war crimes as evidence emerges of atrocities allegedly committed by Russian forces in Ukraine.
No amount of disinformation from the Kremlin can hide the truth about the killing of civilians in Ukraine, UK Prime Minister Boris Johnson has said.
Ukrainian President Volodymyr Zelensky has described the Russian invasion of his country as involving "the torture of the whole nation".
Russia's unmanned Luna-25 spacecraft has crashed into the Moon after spinning out of control, officials say.
Donald Trump has confirmed that he will not take part in Republican presidential debates with his rivals in the race for the White House.