Explosion on the metro in St. Petersburg. At least 10 dead and 50 the wounded. The event is reported and confirmed by Ria Novosti, the Russian press agency.
The metro stations involved are Sennaya Ploshchad - where the explosion would have taken place in a metro car - and Teknologicheskiy Insitut.
7 are the stops that have been closed and immediately evacuated by the authorities by hours.
The President of the Russian Federation Vladimir Putin, who was visiting Saint Petersburg today, was due to meet the Belarusian president Aleksandr Lukašenko this afternoon.