The man suspected of perpetrating the terrorist attack in St Petersburg yesterday has been named as Kyrgyzstan-born Russian citizen Akbarzhon Jalilov.
The suspect's name was revealed by Kyrgyzstan’s state committee for national security, which said it is now cooperating with Russian intelligence agencies in their investigation.
Local media report that Jalilov was 22 years old and originally from the city of Osh, in southern Kyrgyzstan. News agencies say he had lived in Russia for six years.
Russia's health minister has raised the death toll from the attack to 14, with a further 49 people still in hospital.
Alexander Nekrassov, a former advisor to the Russian government, gave more details about Jalilov to talkRADIO, but also said the search for other suspects was underway.
He told Paul Ross: "They’re [security services] looking at the possibility of a young man from central Asia, from Kyrgyzstan.
"They’re investigating whether the man might have been radicalised, or a lone wolf.
"It’s all preliminary, they’re looking through the CCTV footage and picking out people who might be deemed suspicious.
"At the moment, no one has taken responsibility for the attack, so we’re still in unknown territory."
St Petersburg authorities have declared there will be three days of mourning to mark the attack, which occurred when a bomb ripped through a busy subway train in St Petersburg. A second bomb was found nearby having failed to explode.