At least 10 people have been killed after an explosion on the Saint Petersburg subway network.
Another 50 people have been injured following at least one blast that is reported to have involved a shrapnel-filled device.
Pictures posted on social media show the door of a Metro train has been blown out in a blast. Other images showed passengers lying on the ground of a station platform in the Russian city.
The blast is believed to have affected at least two carriages of one train. Unconfirmed reports suggest there was a second blast, but it is unclear if this relates to the same train.
Russia’s President Putin, who was due to meet his Belarusian counterpart Lukashenko in St Petersburg today – has expressed his condolences after the “possible terror attack”.
Putin has said investigators are looking into what he described as a “possible terror attack”, which is “among the theories” for the St. Petersburg subway blast
Another unexploded device reportedly found on Metro network
A source in the emergency services has reported that only one blast occurred, instead of the two initially reported, reports Roland Oliphant.
The home made device was thought to be equivalent to 200 grams of TNT and was placed on the carriage.
Another unexploded device has been found on the St Petersburg metro system, Russian agencies report.
“A bomb that failed to go off was found at Vosstanaya Square metro station,” Interfax reported citing an anonymous source. Police have not confirmed the report.