MOSCOW - Russian security agencies found an explosive device at a metro station in central St. Petersburg and made it safe, the National Anti-Terrorist Committee said in a statement on Monday. The device was found at the 'Ploshchad Vosstaniya' metro station, a different location from where a blast earlier took place. The Committee also said that nine people were killed and 20 injured in the blast, which took place as a train traveled between the 'Sennaya Ploshchad' and 'Tekhnologichesky Institut' stations.