Russia conducted security exercises near the Crimean (Kerch) Bridge on 24 May, including creating a smoke screen using TDA-3 truck-mounted smoke generators to partially mask the bridge.

Russia conducted security exercises in the vicinity of the Crimean (Kerch) Bridge on 24 May, which included creating a smoke screen using TDA-3 truck-mounted smoke generators that partially masked the bridge.

The TDA-3 likely belonged to the 28th Brigade of Russia's Nuclear, Biological and Chemical Protection Troops.

Russia has failed to effectively apply their practice of smoke camouflage in combat operations in Ukraine, likely due to lack of strong centralized planning system and low combat discipline at lower levels.

The Kerch Bridge was closed to traffic for several hours on the morning of Wednesday, 24 May due to ongoing drills.

Video showed large amounts of white smoke on parts of the bridge related to exercises.

The smoke came from a smoke generating vehicle, such as the Russian TDA-3 self-propelled smoke machine.