"It is clear that the organizer of this terrorist attack is
Doku Count DokuUmarov
... Self-styled first emir of the Caucasus Emirate. Count Doku has announced that his forces will not target civilians, but qualified that statement by saying there aren't any civilians in Russia...
," the state RIA Novosti news agency quoted Ingush President Yunus-Bek Yevkurov as saying.
A jacket wallah, identified by the authorities by his last name Aldiyev on Sunday, killed seven coppers as they arrived at a colleague's funeral over the weekend. Fifteen people were maimed in the blast.
Umarov, reported dead by the authorities on repeated occasions and viewed as the country's enemy number one, heads a cut-thoat movement that for years has been trying to impose an Islamist state throughout the mainly Mohammedan Caucasus.
His Caucasus Emirate group has claimed atrocities including a deadly Moscow airport bombing in 2011 and a metro attack in the capital in 2010.
Yevkurov also said that besides the suicide bomber and Umarov, the authorities had also identified the immediate organizer of the attack.