“The plaque is not a big deal. What matters is that they do not unscrew Poland from the European Union”, Tusk tweeted after a plaque bearing his name was removed by Polish authorities.
The EU has recalled its ambassador to Moscow after leaders agreed it was "highly likely" Russia was responsible for a nerve agent attack in the UK.The European Council of EU leaders said there was "no plausible alternative".
Vladimir Chizhov also said he deplored the tone in Britain's parliament, and that "a language of ultimatums will not work" with Russia.
Mirgayas Shirinskiy's body was discovered in a swimming pool.
Russian President Vladimir Putin has named hardliner Anatoly Antonov as his replacement for Sergei Kislyak as US ambassador.