Mikhail Verbitsky, a Russian mathematician and blogger detained at Yerevan’s Zvartnots airport on 12 June, will not be extradited to Russia and is expected to be released within 72 hours, Armenian human rights advocates said on Friday. Artur Sakunts, head of the Helsinki Civil Assembly’s Vanadzor office, confirmed that legal formalities were being concluded and that the extradition request would be denied. “He will not be extradited to Russia,” Sakunts told independent media. The mathematician had been held in a temporary detention facility immediately after his arrival.

Russian authorities placed Verbitsky on a federal wanted list in connection with two criminal cases, his wife Yulia Fridman revealed: one for “discrediting” the armed forces and another for “justifying terrorism.” The latter charge relates to remarks questioning the official investigation into the massacre at the Crocus City Hall concert venue near Moscow. Since January 2025, Verbitsky has been listed on Russia’s financial monitoring register of terrorists and extremists, marked with an asterisk signifying an active terrorism-related prosecution.

Viewed from Brazil, the case has a distinct institutional dimension. Verbitsky has worked since 2017 as a researcher at the Institute for Pure and Applied Mathematics (IMPA) in Rio de Janeiro, a globally respected centre. IMPA confirmed the arrest, describing the Russian warrant as based on “allegations of a political nature.” The academic, known internationally for his contributions to complex geometry, pursued his research from Brazil while maintaining a sharp online critique of the Kremlin. His detention during a transit stop in Armenia, not in his country of residence, underlines the vulnerabilities that dissident scientists face when travelling outside jurisdictions with robust protections.

Under Armenian law, if Moscow failed to produce a formal extradition request within 72 hours, Verbitsky would be released automatically. The swift notice that no extradition will occur suggests Yerevan assessed the charges as politically motivated, a stance shared by several nations that decline to enforce Russia’s broadly drafted extremism statutes. For now, the mathematician appears to have escaped rendition. Yet the episode illuminates the enduring tension between the Kremlin’s increasingly extraterritorial pursuit of its critics and the sovereign choices of countries balancing bilateral pressure with human rights commitments. Western diplomats and rights monitors will be watching closely, as the outcome reinforces calls for coordinated protection of scholars and journalists targeted by Moscow’s justice apparatus.