Analysis of information sources in references of the Wikipedia article "Ataque no metrô de São Petersburgo em 2017" in Portuguese language version.
Thirty-nine people have been hospitalized, six of whom had critical injuries, the health ministry said, putting the number of dead at 11.
Isis supporters are cheering what they claim is a terror attack, and sharing images of people caught up in and killed by the blasts.
The man who killed 14 people and wounded dozens of others at the St. Petersburg subway station was identified Tuesday as a Kyrgyz-born suicide bomber, according to the Central Asian country's security service.
A Reuters reporter visited a house in Osh, southern Kyrgyzstan, which neighbours said was the family home of Jalilov.
Another 39 injured people remain in hospital following the blast on the Russian city's subway network on Monday afternoon that is reported to have involved a shrapnel-filled device.
The Fontanka.ru agency said Dzhalilov had traveled to Syria in 2014 and trained with Islamic State militants. The report said that Russian investigators were trying to determine his travels but that they had ascertained that the device used in the subway attack bore the hallmarks of "Syrian know-how," specifically traces of burned sugar.