Ukraine's 475th Separate Assault Battalion "Code 9.2" has halted Russian advances north of Kupyansk using conventional firepower and FPV drones, inflicting heavy losses, according to a report by NOELreports on October 4th, 2025. In parallel, air raid alerts were issued for the Zhytomyr region due to potential UAV activity, with a course noted towards Ovruch, and Shahed-136 drones were reported in the Kharkiv region between 7:07 PM and 7:36 PM UTC on October 4th, 2025, as indicated by multiple social media alerts. Between 7:07 PM and 7:36 PM UTC on October 4th, 2025, Ukrainian military analysts and monitoring channels reported specific air threats. The departure of TU95/TU160 aircraft was noted around 10:30 PM UTC, suggesting potential missile launches, though relative calm was reported at that specific time according to the Telegram channel Андрій Смолій. Additionally, a report from ЗАГРОЗА З НЕБА indicated the start of UAV activity originating from Millervo. In combat operations, the 475th Separate Assault Battalion "Code 9.2" is actively repelling Russian forces north of Kupyansk. This unit is employing a combination of conventional weaponry and FPV drones to counter advances and is reportedly causing significant casualties among Russian forces, as detailed by NOELreports. Previous reports from October 4th, 2025, indicated multiple threats of impending missile and drone attacks across various Ukrainian regions, including Sumy, Chernihiv, and Kharkiv. Intelligence suggested the potential for a massive rocket strike, with the Iskander-M missile system observed deployed in Voronezh and Taganrog, and a possible missile strike planned for the night of October 4th to 5th.
