ST PETERSBURG—Russian authorities raided a residential building in St Petersburg on Thursday and found explosives similar to those used by a suicide bomber who this week blew up a metro carriage killing 14 people, two security sources said.
The discovery of the explosives raises the possibility that a string of bomb attacks was being planned in the city involving a group of plotters.
The explosives were discovered when security officials raided an apartment building in the city. They detained several people, according to a neighbor who saw the detentions taking place.
Russian investigators said they had detained several suspected accomplices of Akbarzhon Jalilov, born in mainly Muslim Kyrgyzstan, who is the suspected bomber in Monday’s metro blast.
It was not immediately clear if the suspected accomplices were the same people detained at the apartment building.
