A snowy day unexpectedly followed Wednesday's nearly spring-like temperatures in Bulgaria's capital Sofia.

Bulgarian nationalist leader Volen Siderov, who heads Ataka party, heading a traditional rally in downtown Sofia, Bulgaria, to mark Liberation Day on March 03, 2015.

Russians lay flowers and light candles in memory of Boris Nemtsov at the monument of political prisoners `Solovetsky Stone` in St. Petersburg, Russia, 28 February 2015.

Russian investigators stand near the covered body of Boris Nemtsov, with St. Basil`s Cathedral seen in the background, in central Moscow, Russia, 28 February 2015.

A group of European ambassadors and officials visit the site of the killing of Boris Nemtsov in central Moscow, Russia, 28 February 2015.

German Ambassador to Russia Ruediger von Fritsch (C) visits the site of the killing of Boris Nemtsov in central Moscow, Russia, 28 February 2015.

A BGN 16 B "banknote" depicting Bulgaria's Finance Minister Vladislav Goranov is held by protesters against Bulgaria's move to take on the aforementioned amount of new debt. Friday's protest was organized by the oppositon socialist party.