On August 13, a targeted explosion occurred in a residential district of Sevastopol, a port city in Russian-occupied Crimea. A bomb, estimated to contain the equivalent of 500g of TNT, was concealed within a rubbish bin and detonated as Robert Shageev, a deputy commander of a Russian Black Sea fleet submarine brigade, walked past in his naval uniform. Shageev died at the scene from the blast.

Russian investigators identified and detained 32-year-old Margarita Reutt as the primary suspect in the killing. Reutt is a resident of Sochi, a Russian resort city located approximately 300 miles across the Black Sea from the site of the attack. While Russian authorities have moved quickly to name a suspect, the investigation remains ongoing, and specific details regarding the evidence linking Reutt to the device or her potential motives have not been fully disclosed by official sources. The incident highlights the ongoing security tensions within the Crimean region, which has been under Russian occupation since 2014. As of now, there has been no public statement from the suspect or her legal representatives regarding the accusations.