- Ukrainian forces struck Russia’s Promsintez explosives plant in Chapayevsk on March 28 using a cruise missile identified in open-source reports as the FP-5 “Flamingo” system.
- The targeted facility produces explosive materials for ammunition, bombs, and missiles, indicating an effort to disrupt Russia’s munitions supply chain.
Ukrainian forces carried out a strike overnight on March 28 against a Russian explosives production facility in the city of Chapayevsk.
The target was identified as the JSC “Promsintez” plant, a site involved in producing explosive materials used in ammunition and aerial weapons.
The strike appears aimed at disrupting Russia’s ability to manufacture explosive compounds for munitions at a time when sustained artillery and air operations remain central to the war. Attacks on industrial facilities tied to ammunition supply chains have become a recurring feature of Ukraine’s campaign to degrade Russian military production capacity.
Open-source intelligence (OSINT) analysts from Exilenova+, which tracks battlefield effects, reported that the facility in Chapayevsk was hit by a Ukrainian cruise missile identified as FP-5 Flamingo.
The group said: “A hit by a ‘Flamingo’ missile on the explosives production facility of JSC ‘Promsintez’ in the city of Chapayevsk, morning of 28.03.2026.” The same assessment added: “Due to the powerful shockwave, windows and glass were shattered.”
The reported strike location corresponds to coordinates published alongside the assessment: 52.942417, 49.694440, which place the impact area within the industrial zone of Chapayevsk, a city long associated with chemical and explosives production.
According to publicly available information, the Promsintez enterprise produces a wide range of explosive substances used for equipping various types of ammunition, including artillery shells, aerial bombs, and missile warheads. Facilities of this type form a key part of Russia’s defense-industrial base, supplying materials necessary for sustained combat operations.
Further indication of Ukrainian involvement came from Denys Shtilierman, a director at the Ukrainian company Fire Point, which develops cruise missile systems. Shtilierman published video footage showing the launch of an FP-5 cruise missile and captioned it with a reference to “Chapayevsk.” The footage was accompanied by an informal remark suggesting the strike location, reinforcing the connection between the FP-5 system and the reported attack.
The FP-5 is a Ukrainian-developed cruise missile platform associated with long-range precision strike roles. While detailed specifications remain limited in open sources, such systems are typically designed to deliver payloads against fixed targets at distance, using low-altitude flight profiles to evade air defenses.
Cruise missiles like the FP-5 are used to engage infrastructure targets with a high degree of accuracy. They can be programmed with preloaded coordinates and terrain-following routes, allowing them to penetrate defended airspace and strike industrial or logistical nodes.