ST PETERSBURG, April 3 - At least 10 people were killed and 50 others injured today when an explosion ripped through a subway train in St Petersburg, the spokesman for the city�s governor told Russian television.
President Vladimir Putin, who was visiting the city on an unrelated trip today, said investigators were looking into whether the explosion was a terror attack or if there might have been some other cause. He offered his condolences to the families of those killed.
Russia�s National Anti-Terrorist Committee said an unidentified explosive device went off on a train that was travelling between two stations.
Maxim Liksutov, Moscow�s deputy mayor, told Interfax that Moscow authorities were tightening security on the subway in the Russian capital.
The agency that runs the subway said several stations in the northern Russian city were closed and that an evacuation was under way. � AP