April 4 (UPI) -- Officials in Russia and Kyrgyzstan on Tuesday said Akbarjon Djalilov, a Kyrgyz-born Russian citizen, carried out the St. Petersburg subway bombing in which 14 people were killed.
Kyrgyz Foreign Minister Erlan Abyldaev said the attack was a suicide bombing, but Russian investigators have not confirmed. Abyldaev said Djalilov's motives were unclear during a press conference with Russian Foreign Minister Sergey Lavrov.
"Regarding the link with Islamic radicalism, we have to wait to know more until the investigation yields its full results," Abyldaev said.
Senior Kyrgyz intelligence official Rahat Sulaimanov said Djalilov was born in 1995, though he told ABC News he could not specify if the attack was a suicide bombing. He suggested such determinations would come from Russian officials.
"Kyrgyz [State Committees of National Security] and Russian [Federal Security Service] work very closely, but in this case, all other info will come out of Moscow, as Djalilov is a Russian citizen only," Sulaimanov said.
The bombing occurred on Monday at 2:20 p.m. inside of a subway train car traveling from the Tekhnologichesky Institut Station to the Sennaya Ploshchad Station. The Russian Investigative Committee classified the bombing as a terrorist attack but investigators said they are looking into all possibilities.
The St. Petersburg department of Russia's Emergencies Ministry said officials are investigating reports of a bomb threat made on the Sennaya Ploschad subway station, which is closed. The Dostoyevskaya subway station is also closed, though officials did not detail the reason, Russia's state-run Tass news agency reported.
Russian Health Minister Veronika Skvortsova on Tuesday said 49 people were still hospitalized.
"Today, we can verify the death of 14 people: 11 at the scene and three others died in an agonizing condition, one of them at the stage of transportation in the ambulance and two others -- at a reception area of Mariinsky Hospital of injuries incompatible with life," Skvortsova told reporters. "On Tuesday morning, the comatose patients have come to their senses and named themselves. One woman patient is in a medically induced coma, which makes it easier for her brain to cope with pain."
St. Petersburg Gov. Georgy Poltavchenko said three foreigners and travelers from 17 of Russia's regions were hit in the blast.
Russia has begun a three-day mourning period. Russian President Vladimir Putin, who was in St. Petersburg at the time of the bombing, laid down roses at one of the memorials.