 Russia's foreign ministry has ordered the expulsion of seven diplomats from Slovakia, Lithuania and Latvia and Estonia in retaliation for the expulsion of Russian envoys. The ministry gave the three Slovak and two Lithuanian diplomats as well as an envoy from Latvia and another from Estonia one week to leave Russia. Russia accused the four countries of showing studio solidarity with the Czech Republic which ordered most Russian diplomat staff in Prague to leave last week after accusing Russian spies of being behind a 2014 blast at an ammunition depot. Russia has dismissed the accusations as absurd. Moscow and Prague are locked in their biggest row since the end of the communist era in 1989.