At least 10 people have been hospitalized following an explosion at a St. Petersburg supermarket, according to a report from The Associated Press.

Russian officials said a device containing the equivalent of 200 grams of TNT went off at a storage area for shoppers' bags. No one has claimed responsibility for the explosion, but a government spokesperson said the blast was "an attempt to kill two or more persons in a generally dangerous way," according to the AP.

The explosion follows Russian President Vladimir Putin's thank-you call to U.S. President Donald Trump earlier this month after a CIA tip helped stop a series of bombings in St. Petersburg. A suicide bombing on the city's subway killed 16 people and wounded more than 50 in April.