HUR (Main Intelligence Directorate of the Ministry of Defence)
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Kyiv shootout between SBU and GUR erupts over alleged FSB plot against Chechen exile leader Zakayev
Ukraine's SBU said it prevented an FSB-ordered plot to assassinate Akhmed Zakayev, the exiled head of the Chechen Republic of Ichkeria's government, who was in Kyiv for Independence Day on 24 August. The case targeted Stepan Kaplunov, a Russian-national volunteer and deputy commander of the Russian Volunteer Corps (RDK) embedded in a GUR special unit. On 2 September, a shootout in Kyiv's Berezniaky district during a search of Kaplunov's apartment left three GUR personnel wounded. Kaplunov and RDK say he was abducted by SBU officers on 23 August and his confession was extracted under pressure; the SBU says his group attacked its investigative team. President Zelensky called the incident 'absolutely shameful,' an SBU official was dismissed, and the DBR and Prosecutor General's Office opened investigations.
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Armed clash between SBU and HUR in Kyiv linked to missing Russian Volunteer Corps deputy commander
On the morning of 2 September, an armed confrontation broke out on Yurii Shumskoho Street in Kyiv's Dnipro district between operatives of the Security Service of Ukraine (SBU) and personnel of the Main Intelligence Directorate (HUR) of the Ministry of Defence. The SBU said its Alpha unit used weapons against an armed group that attacked its investigative team during a search tied to a joint SBU–HUR operation that allegedly foiled an FSB terrorist plot against a Russian opposition figure in Ukraine for Independence Day. Media and Kaplunov's lawyer say the shooting was opened by the SBU against unarmed HUR personnel after a handshake agreement, with several HUR servicemen wounded. President Zelensky condemned the incident as "absolutely shameful" and signalled personnel decisions and internal investigations.