Above, the Russian flag flies at half-mast at the Kremlin. Moscow is holding a day of mourning for those who lost their lives.
Inside the Kremlin, the Russian president, Dmitry Medvedev, and top officials observe a minute's silence during an emergency session of the Security Council yesterday. Medvedev said Russia would fight terror without hesitation and to the end.
Flowers on a platform inside the Lubyanka Metro station in Moscow. Services had resumed by the afternoon.
Outside the station, a woman cries.
Prime Minister Vladimir Putin speaks with a victim of one of the attacks at a hospital in Moscow.
All photographs from AFP/Getty Images.