MOSCOW, RUSSIA — An explosion in St. Petersburg train station, described by Russia’s Prosecutor General’s office as a terrorist attack, left about 10 people dead and around 50 injured today, April 3.

“So far, we say it was an unidentified explosive device as investigators and the Federal Security Service’s bomb specialists are to establish the exact cause of this explosion,” spokesman for the National Anti-terrorist Committee Andrei Przhezdomsky told the state-run Russia 24.

 

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Over 60 passengers were victims of the explosion. Photo by Yahoo!

 

The explosion happened while the train was journeying the tunnel between the Sennaya Ploshchad and Tekhnologichesky Institute stations.

“I was going going down the escalator at Sennaya square at about half past 2, and at that moment I felt an explosion wave underneath. Everything was filled with smoke, people started panicking. So the trains stopped and almost immediately the evacuation started,” witness Stanislav Listyev told CNN.

Promising a thorough investigation, Russian President Vladimir Putin expressed his condolences to the victims and is talking to the FSB security services about the investigation, according to state media.

The St. Petersburg metro has five lines and 67 stations. It transports 2.3 million people a day and has more than 1,600 train cars.