Police arrest seven in wake of St. Petersburg subway bombing

As part of a sweeping hunt for any accomplices of the St. Petersburg suicide bomber, investigators Wednesday rounded up seven suspected Islamic State recruiters from the Central Asia region of the former Soviet Union but found no immediate evidence of their involvement in the subway attack.

The Investigative Committee hasn’t caught any associates of 22-year-old Akbarzhon Dzhalilov, a native of the Central Asian nation of Kyrgyzstan.

The committee, Russia’s top criminal investigation agency, said it’s looking into the possibility that Dzhalilov, who carried out Monday’s deadly attack, could have been linked to the militant group.

The impoverished, predominantly Muslim countries in Central Asia are seen as fertile ground for Islamic extremists, and thousands of their residents are believed to have joined IS in Syria and Iraq. Meeting with the heads of security services from a regional alliance that includes most of Russia’s Central Asian neighbours, President Vladimir Putin warned that terror threats still loom over the region.

“We see that, unfortunately, the situation is not improving,’’ Putin said. “The recent tragic events in St. Petersburg are the best confirmation of this. We know that each of our countries, practically every one, is a possible and potential target of terrorist attacks.’’ In Wednesday’s sweep in St. Petersburg, law enforcement agencies arrested seven Central Asian migrants who are suspected of acting as recruiters for the Islamic State and the al-Qaida’s branch in Syria. The detainees were accused of seeking “mostly immigrants from the republics of Central Asia to commit crimes of a terrorist nature and encourage them to get involved in the activities of terrorist organizations,’’ the Investigative Committee said. Investigators were still checking their contacts, it added, but noted that as of now, “there is no information about any links between the detainees and the perpetrator of the terror attack.’’ An unidentified law enforcement official told the Tass news agency that investigators were checking information that Dzhalilov may have trained with the Islamic State group in Syria. Tass said he reportedly flew to Turkey in November 2015 and spent a long time abroad. The investigators have searched Dzhalilov’s home and found objects similar to those used in the subway bomb, it said.

CCTV footage from outside his apartment building showed him leave home with a bag and a backpack on Monday. The explosion on a train running along a busy north-south subway line killed the attacker and 13 other people. Another 55 have remained hospitalized, and several of them are in critical condition, according to the Russian Health Ministry.

Before blowing himself up, Dzhalilov left a second bomb, hidden in a bag, at another subway station. Police found and deactivated it, and Dzhalilov’s DNA was found on the bag.

At Dzhalilov’s hometown of Osh in southern Kyrgyzstan, his schoolteacher described him as “well brought up, calm and balanced.’’

Fatima Saipjanova, who taught Dzhalilov at SchoolGymnasium No. 26, said she never saw him get into any trouble.

“I do not believe that this boy could do something wrong,’’ she said.