The death toll from an explosion on the St Petersburg metro has risen to 14, with Russian authorities investigating a possible terrorist attack.
The likely suspect behind the blast has been named as Akbarzhon Jalilov, a Russian citizen born in Kyrgyzstan, according to the Kyrgyz GKNB security service.
As many as 42 people were treated in hospital, with 13 of them in a serious condition, according to Russian news agency Interfax.
Some metro lines in Russia’s second city had reopened on Monday evening, despite the National Antiterrorism Committee saying it is searching for perpetrators in what it believes was a bomb attack.
No group publicly claimed responsibility. Russia’s transport network has in the past been targeted by rebels from the North Caucasus region.
Russian Prime Minister Dmitry Medvedev described the explosion as a “terrorist attack” in a post on his official Facebook page, while President Vladimir Putin said authorities would investigate possible causes, including “above all, those of a terrorist nature”.
Politicians from around Europe offered their condolences.
Britain’s foreign secretary Boris Johnson said: “Horrified by news of explosion in St Petersburg. My sympathies are with the victims and their families.”
Germany’s foreign minister, Sigmar Gabriel, said on Twitter: “Our thoughts are with our friends in Russia, with the victims and their families.”
French foreign minister Jean-Marc Ayrault said: “I would like to express France’s solidarity with Russia and all our support and condolences to the families of the victims.”