IN PHOTOS: Blast Tears Through Metro Station in Russia's St. Petersburg
At least 10 were dozens hurt in what Russia's general prosecutor has official declared a terror attack.

An injured man stands near the scene of an explosion on a subway station in St. Petersburg, Russia, April 3, 2017.Credit: ALEXANDER BULEKOV/AFP
At least 10 people were killed and 47 injured in a blast at a St. Petersburg metro on Monday, in what Russia's general prosecutor has officially declared a terror attack.
Blast victims lie near a subway train hit by a explosion at a metro station in St. Petersburg, Russia, April 3, 2017.Credit: /AP
Emergency services arrive on the scene outside Sennaya Ploshchad metro station, St. Petersburg, Russia, April 3, 2017.Credit: ANTON VAGANOV/REUTERS
A subway train hit by an explosion at a subway station in St. Petersburg, Russia, April 3, 2017.Credit: /AP
Emergency services at the scene outside Sennaya Ploshchad metro station in St. Petersburg, Russia, April 3, 2017.Credit: ANTON VAGANOV/REUTERS
An injured man stands near the scene of an explosion on a subway station in St. Petersburg, Russia, April 3, 2017.Credit: ANTON VAGANOV/REUTERS
Emergency services arrive on the scene outside Sennaya Ploshchad metro station, St. Petersburg, Russia, April 3, 2017.Credit: ANTON VAGANOV/REUTERS
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Interfax news agency quoted unnamed sources as saying that the explosive device had been left in a briefcase on the metro carriage and had been filled with shrapnel.
Russia's anti-terrorism committee has since said a second explosive device was found and detonated at a different location from where the earlier blast took place. All St. Petersburg metro stations were closed following the blast.