Кавказ-центр
On 18 March 2014, Umarov's death was reported by the Caucasus Emirate-associated Islamist website Kavkaz Center, which offered no details but did say his death was confirmed by the Command of the Caucasus Emirate. He was announced to be replaced by the Caucasus Emirate's senior Sharia judge Ali Abu Mukhammad, who then officially confirmed the death of Umarov in a video posted on YouTube. Previously, Umarov had been reported killed or captured by Russian forces on numerous occasions, but all these reports later turned out to be incorrect. According to a report posted on Kavkaz Center, Umarov was poisoned on 6 August 2013 and died at dawn on 7 September 2013. On 25 September 2017, Russian media reported that the body of Umarov had possibly been found in a remote mountainous area in Ingushetia.