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TOPSHOT - A picture shows the damaged train carriage at Technological Institute metro station in Saint Petersburg on April 3, 2017.
Around 10 people were feared dead and dozens injured Monday after an explosion rocked the metro system in Russia's second city Saint Petersburg, according to authorities, who were not ruling out a terror attack. / AFP PHOTO / STR        (Photo credit should read STR/AFP/Getty Images)
TOPSHOT - A picture shows the damaged train carriage at Technological Institute metro station in Saint Petersburg on April 3, 2017.
Around 10 people were feared dead and dozens injured Monday after an explosion rocked the metro system in Russia's second city Saint Petersburg, according to authorities, who were not ruling out a terror attack. / AFP PHOTO / STR        (Photo credit should read STR/AFP/Getty Images)

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    Officials: Second explosive found, disabled

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Officials: Second explosive found, disabled

Russian officials say a second explosive device was found and disabled after an explosion on the metro killed at least 10 people and wounded dozens more in St. Petersburg, Russia.

Officials: Second explosive found, disabled

Russian officials say a second explosive device was found and disabled after an explosion on the metro killed at least 10 people and wounded dozens more in St. Petersburg, Russia.