Moscow will expel British diplomats after UK has expelled 23 diplomats from London, Russian Foreign Minister Sergey Lavrov told RIA Novosti.
UK failed to cooperate with London, said Russian foreign ministry spokeswoman Maria Zakharova on Thursday, adding that Moscow's response measures are under development and will be approved in the near future.
Zakharova called UK accusations of Russian involvement in the poisoning of Sergei Skripal as “insane”.
