Two women, who staged the Moscow Metro attack, were part of a suicide bombing school which has sprouted on the European soil in the jungles of Vedensky area of Chechen, where recruits are lured through Internet.
Russian intelligence investigating Monday's bombing in which 39 people were killed said the woman were part of a squad of 30 men and women recruited by militant leaders to carry out the suicide bombings, the Kommersant daily reported.
These bombers are inducted through the Internet and then trained in armed camps in Vedensky region of the troubled North Caucasus.
The daily said the investigators were looking for a 20-year old third woman accomplice of the bombers. The woman, who was seen accompanying the bombers in CCTV footage before the blasts, is now missing.
"Investigators are probing that the Moscow Metro bombers were products of the Vedensky camp for potential suicide bombers," it said.
The women bombers are believed to have taken a direct overnight bus to Moscow from the Dagestan town of Kizlyar, where a double suicide bombing killed 12 people yesterday.
Investigators told the paper that the young Muslim men and women were recruited after they were read fundamentalist Wahabi sermons on the Internet by the leaders who later sent their emissaries to bring them in.
Wahabism is a purist strain of Islam prevalent in Saudi Arabia and also followed by followers of world's most wanted terrorist Osama bin Laden.
The paper said the Russian investigators had warned that the suicide bombers could carry out more attacks in Russia and outside.