Ali Yusupov, a local resident, was detained by officers of security agencies at a post in the Naursky district of Chechnya on May 10. Another resident of the Naursky district reported it. The officers start inspecting Yusupov's documents and then detained him without giving any explanations and took him away in an unknown direction, the man said. The cause of the detention of Ali Yusupov is unknown.