Saint Petersburg Metro

Blast in St Petersburg metro station kills at least 9, injures 20

At least nine people were killed and 20 injured when an explosion tore through a train carriage in the St. Petersburg metro system on April 3, the Russian National Anti-Terrorist Committee said, according to Reuters. 

Interfax news agency quoted an unnamed source as saying the blast, which occurred when the train was between two stations, was caused by a bomb filled with shrapnel.