Intelligence agencies say deadly toxin in skin of Ecuador dart frogs found in Navalny’s body and highly likely resulted in his death

• Munich Security Conference – live updates

Alexei Navalny, the Russian opposition leader, was killed by dart frog poison administered by the Russian state two years ago, a multi-intelligence agency inquiry has found, according to a statement released by five countries, the UK, France, Germany, Sweden and the Netherlands.

The US was not one of the intelligence agencies making the claim.

German chancellor rebuts idea of American unilateralism and says ‘democracies have partners and allies’

The US acting alone has reached the limits of its power and may already have lost its role as global leader, Friedrich Merz, the German chancellor, warned Donald Trump at the opening of the Munich Security Conference.

Merz also disclosed he had held initial talks with the French president, Emmanuel Macron, over the possibility of joining France’s nuclear umbrella, underlining his call for Europe to develop a stronger self-standing security strategy.

European leaders divided over how far to accommodate Trump’s ‘wrecking ball’ politics and foreign policy

US Democrats will use a security summit this weekend to urge European leaders to stand up to Donald Trump, with the continent divided over how to keep the unpredictable US president on side.

Democrats at the annual Munich Security Conference will include some of Trump’s most outspoken critics, such as the governor of California, Gavin Newsom, the New York congresswoman Alexandria Ocasio-Cortez, the Arizona senator Ruben Gallego and the Michigan governor, Gretchen Whitmer.