Russia has vowed to "respond in kind" following the Estonian government's decision to expel two Russian diplomats from the country on Friday.
Russian First Deputy Foreign Minister
Vladimir Titov told reporters on Monday that "Estonia's provocation would not remain unanswered."
He said that move threatened bilateral relations, which had already driven into a “dead end” by Estonian officials, Russia's TASS news agency reported.
Consul General in Narva, Dmitry
Kazennov and Consul Andrei Surgayev were both asked to leave Estonia on Friday.
No official reason has been given for the decision.