Russia's main security agency says the grave of Doku Umarov -- the late leader of the Islamic insurgency in the North Caucasus -- has been found.
The Federal Security Service (FSB) said on September 27 that the burial site of Umarov and four other insurgents had been found in the mountains of Ingushetia.
It said Umarov was killed in a special operation in September 2013.
After two separatist wars in Chechnya in the mid-1990s and early 2000s, the Islamic militancy spilled over into Russia's other North Caucasus regions such as Daghestan, Ingushetia, and Kabardino-Balkaria.
In 2007, the leader of Chechen separatist forces, Umarov, proclaimed himself the leader of what he called the independent Islamic state of Imarat Kavkaz (Caucasus Emirate) in Russia's North Caucasus.
A pro-militant website said in March 2014 that Umarov had "become a martyr."
In April 2014, FSB Director Aleksandr Bortnikov announced that Umarov's "activities" had been "neutralized," without explicitly saying whether he was killed.
Umarov was linked to a series of bombings across Russia, including in Moscow.