The blast occurred at Sennaya Ploshchad train station in St Petersburg, Russia Eight ambulances raced to the scene of the carnage caused by a huge explosion
Metro officials reported blast was from an improvised explosive device on board
At least 10 people have been reported to have been killed by two explosions
Two nail bombs on the metro in St Petersburg ripped through train carriages killing at least 10 people today.
The incident occurred at two separate locations including Sennaya Ploshchad train station leaving at least 50 injured including children.
Vladimir Putin is in his hometown of St Petersburg today for talks with the president of Belarus and has confirmed 'there are dead and injured'.
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