Moscow expelled 20 Czech diplomats on Sunday in a confrontation over Czech allegations that two Russian spies accused of a nerve agent poisoning in Britain in 2018 were behind an earlier explosion at a Czech ammunition depot that killed two people, Reuters reports.
Prague had on Saturday ordered out 18 Russian diplomats, prompting Russia to vow on Sunday to “force the authors of this provocation to fully understand their responsibility for destroying the foundation of normal ties between our countries”.
Moscow gave the Czech diplomats just a day to leave, while Prague had given the Russians 72 hours.
The Czech Republic said it had informed NATO and European Union allies that it suspected Russia of causing the 2014 blast, and European Union foreign ministers were set to discuss the matter at their meeting on Monday.
The U.S. State Department commended Prague’s firm response to “Russia’s subversive actions on Czech soil”.
The row is the biggest between Prague and Moscow since the end of decades of Soviet domination of eastern Europe in 1989.
It also adds to growing tensions between Russia and the West in general, raised in part by Russia’s military build-up on its Western borders and in Crimea, which Moscow annexed from Ukraine in 2014, after a surge in fighting between government and pro-Russian forces in Ukraine’s east.
Russia said Prague’s accusations were absurd as it had previously blamed the blast at Vrbetice, 300 km (210 miles) east of the capital, on the depot’s owners.
It called the expulsions “the continuation of a series of anti-Russian actions undertaken by the Czech Republic in recent years”, accusing Prague of “striving to please the United States against the backdrop of recent U.S. sanctions against Russia”.