Earlier in the day, the ministry summoned the ambassadors of Latvia, Lithuania, and Estonia to inform them about Moscow's response measures to the expulsion of Russian diplomats.
"Based on the principle of reciprocity, the accreditation of four employees of the Embassy of Lithuania, three of the Embassy of Latvia, as well as three representatives of the Embassy of Estonia and the Pskov Chancellery of the Consulate General of Estonia in St. Petersburg has been announced", the ministry said in a statement.
Latvian Ambassador to Moscow Maris Riekstins said earlier in the day that Moscow had informed the Baltic states that it would declare their diplomats personae non gratae in response to the expulsion of Russian diplomats.
Earlier in March, Estonia and Latvia expelled three Russian diplomats each, with Lithuania declaring four employees of the Russian Embassy personae non gratae for alleged activities incompatible with the status of a diplomat.