At least 10 people were injured Wednesday by an explosion at a supermarket in St. Petersburg, Russia's second-largest city and the site of a deadly subway bombing this year. The Investigative Committee, the nation's top investigative agency, said a device containing 7 ounces of explosives went off at a storage area for customers' bags. It said the device was rigged with shrapnel to cause more damage. No one has claimed responsibility for the explosion at a branch of the Perekrestok supermarket chain in the city's Kalininsky district, the AP reports. Alexander Klaus, chief of the local branch of the Investigative Committee, said 10 people were hospitalized with injuries.
Viktoria Gordeyeva, a St. Petersburg resident who walked past the supermarket shortly after the explosion, said there was no panic, but people were afraid to enter other stores in the area. While officials stopped short of branding the explosion as a terror attack, the National Anti-Terrorism Committee, which oversees anti-terror efforts in Russia, said it was coordinating the search for suspects. Russian President Vladimir Putin called President Trump earlier this month to thank him for a CIA tip that helped thwart a series of bombings in St. Petersburg, Putin's home town. Russia's Federal Security Service said seven suspects linked to ISIS were arrested in connection to the alleged plot.