(ANSA-AFP) - MOSCOW, APR 20 - Russia's foreign ministry on Tuesday said it had expelled two Bulgarian diplomats in a tit-for-tat move after Sofia kicked out two Russian diplomats over a suspected spy network. The two diplomats had been declared "persona non grata" the ministry said, adding that the move was in "response" to last month's "baseless" expulsions of the Russian diplomats. (ANSA-AFP).