There are reports of nearly a dozen deaths in explosions on the subway system in the Russian city of St. Petersburg.
Russian media, including the Tass News Agency, say explosions at two stations killed ten people and injured 30. One or more explosive devices reportedly were filled with shrapnel.
Photos posted on social media show the door of a subway train blown out by an explosion. Other photos show injured commuters lying on the station platform.
One eyewitness tweeted that "the station is evacuated."