Ukraine faces "grave consequences" from Russia for its decision to sign a trade agreement with the European Union, the deputy foreign ministry has warned.
Grigory Karasin's comments after Ukraine's president Petro Poroshenko agreed a three-year deal with the EU.
Kremlin spokesman Dmitry Peskov said Russia would take measures to protect its economy if it was negatively affected by Ukraine, Georgia and Moldova's agreements.
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The mother of one of the Manchester attack victims has told of the distressing moment she found her daughter being treated after the attack.
Marjorie and Michael Cawdery, both 83, are understood to have been stabbed to death in a killing their family called "incomprehensible".
Detectives have launched a murder investigation following the shooting in Brent, north west London on Friday night.