Censor.NET reports citing the statement by spokesperson for the city governor Georgy Poltavchenko.
"There are about 50 injured so far. The doctors are providing them with medical assistance. There are currently 17 ambulances at the scene while their number growing," he wrote.
According to preliminary data, 10 people were killed in the subway explosion.
As reported, a series of blasts rocked metro in the Russian city of Saint Petersburg in the afternoon of April 3. Open Russia reported that there were two explosions: the first blast rocked the Technological Institute station while the second one occurred between Sennaya and Technological Institute stations.
Related materials: Blasts in Saint Petersburg metro