https://www.dw.com/ru/v-erevane-zaderzan-rossijskij-matematik-mihail-verbickij/a-77536470
Renowned mathematician and blogger Mikhail Verbitsky was detained at the Yerevan airport. His wife, Yulia Fridman, posted this on Facebook on the night of Saturday, June 13, noting that the arrest had occurred on the afternoon of June 12. According to Fridman, two criminal cases have been opened against the scientist in Russia: for "discrediting" the army and for justifying terrorism: "For questioning the investigation methods of the terrorist attack at the Crocus shopping center."