At least 10 people were killed in an explosion on the train between two stations of suburban railway station in St. Petersburg, Russia's second largest city.
At least 50 people were injured in the incident on Monday. The number of deaths is expected to increase.
Russian national anti-terrorism committee head Andrei Predzomsky said that a train, which was damaged by the explosion, was under military station and subway station.The committee further said, a further explosive device was found and another station named Ploshchad Bhostania was made safe.Russian President Vladimir Putin said that all causes including terrorism will be investigated.
