MOSCOW, April 4 (Xinhua) -- Kyrgyzstan's State Security Committee suspected a Kyrgyzstan-born Russian citizen of carrying out the bombing attack in the St. Petersburg metro, the Kyrgyz foreign minister said Tuesday.
Erlan Abdyldayev disclosed the findings at a joint news conference with his Russian counterpart Sergei Lavrov in Moscow.
The blast took place on Monday afternoon in a metro train carriage in St. Petersburg, Russia's second largest city, killing 14 people and wounding dozens.
Abdyldayev said it was too early to link the suspect to the Islamic State or other terrorist groups.
Lavrov responded that it was inadmissible to connect the attack to the origins of a person or a religion. He added that terrorism has no nationality and represents "a crime against all humanity and all world religions without exception."
Speculations are "cynical and mean" that the metro attack could be an act of revenge for Russia's participation in anti-terrorist operations in Syria, said Lavrov.
Earlier in the day, Russian Investigative Committee spokeswoman Svetlana Petrenko said the explosive device was possibly detonated by a man, whose fragmented remains were found in the blown-up train.
"Investigators are now continuing their inquiries, including reviewing CCTV footage," Petrenko said.
