Trump offers Putin 'full support' in subway bombing investigation

Separately, in the southern Russian city of Astrakhan, two policemen were killed in the early hours on Tuesday in a suspected Islamic militant attack.

M - Ministry of Foreign Affairs of Kyrgyzstan denied information that Akbarjon Jalilov, who is suspected on bombing the subway in St Petersburg on April 3, was "a Kyrgyz citizen".

Russian President Vladimir Putin, center, heads an emergency meeting in the Federal Security Service building headquarters in St. Petersburg, Russia, on Monday.

The Eiffel Tower will remain dark overnight to honor the victims of the St. Petersburg bombing, Paris Mayor Anne Hidalgo said in a tweet that carried the hashtag #NousSommesUnis (We Are United).

Another explosive device was found at the Ploshchad Vosstania station and was diffused by local law enforcement.

Russian police officer with a sniffing dog crosses a police line in St.Petersburg as a tower block was evacuated.

Kyrgyzstan, a former Soviet republic of six million, is a close political ally of Moscow and hosts a Russian military airbase. Officials in Kazakhstan said they were co-operating with Russian authorities, although it was not clear if there was an additional suspect from that country.

Wednesday's statement from the Investigative Committee gave few details, but said those arrested came from Central Asian countries that once were part of the Soviet Union.

Russian Federation on Wednesday probed the potential motives of the alleged bomber behind a blast in the Saint Petersburg metro that killed 14 people, as the grieving city mourned its dead.

Authorities in the mainly Muslim nation say Djalilov and his parents are ethnic Uzbeks with Russian citizenship and that Djalilov has lived in Russia since he was 16.

News agency Interfax, citing a law enforcement source, said alleged links with the suicide bomber who killed at least 14 people on the city's Metro were being checked.

Firetrucks and ambulances are parked outside Sennaya subway station in St. Petersburg, Russia, on Tuesday.

"We see that, unfortunately, the situation is not improving".

"While I entrust all those who are tragically deceased to the mercy of God, I express my spiritual closeness to their loved ones and to all those who are suffering because of this dramatic event" he said.

Authorities in Saint Petersburg have declared three days of mourning for the victims, the BBC reported.

  • Leroy Wright