Ukraine’s military intelligence agency HUR has released a video showing a night-time drone strike on a key Russian radar installation in occupied Crimea. The destroyed radar was part of the S-400 Triumf air defense system—Russia’s most advanced long-range surface-to-air missile complex designed to detect and shoot down aircraft, drones, and missiles at ranges up to 400 km.

Ukrainian drone disables long-range Russian radar in Crimea

According to HUR, the operation took place in the early hours of 28 August and targeted a 91N6E radar complex—an essential component of the S-400 system responsible for long-range target detection. The strike was carried out by the Department of Active Operations of HUR. A short video released by the agency shows the drone approaching and striking the installation.

Ukrainian outlet Militarnyi reports that the radar’s antenna array—its most vulnerable part—was directly hit by an aircraft-type drone. The outlet notes the installation was likely disabled as a result. HUR mocked the loss, saying another “Triumf” of the occupiers had gone blind, calling it a “fiasco.”

Russia’s radar shield in Crimea is steadily crumbling

Earlier this month, the unit destroyed several radar stations belonging to the Russian 3rd Radio-Technical Regiment, based in the Ai-Petri mountain area on Crimea’s southern coast. Russia had attempted to protect these radar systems by hiding them under Soviet-era radio-transparent domes. However, Ukrainian drones still managed to hit the Nebo-SVU, Podlet K-1, and the rare 98L6 Yenisey radars.

The Yenisey radar is a next-generation system developed for use with the future S-500 missile platform.

Ukraine creates blind zones for deeper drone strikes

The goal of these strikes, according to Militarnyi, is to carve out “blind corridors” in Russian radar coverage over occupied territory. These gaps have allowed Ukrainian long-range drones to carry out additional raids.

In the past month, HUR and the SBU conducted attacks that damaged up to six Russian fighter jets at the Saky airfield. At Kirovske airbase, Ukrainian drones also hit Mi-8 and Mi-26 transport helicopters and a Mi-28 attack helicopter.