Drones attack strategic sites in Russia’s Tatarstan, explosions across Kazan - Video

The Borisoglebskoye experimental airfield, which houses the Kazan State Aviation Plant, the manufacturer of Tu-160 strategic bombers, was the possible target of the attack, along with the helicopter factory in the Aviastroitelny district of the city. 

At least 3-4 powerful explosions were heard overnight in the Aviastroitelny, Kirovskiy, Moskovskiy and Novo-Savinovskiy districts.

The attack prompted the temporary closure of Kazan and Nizhnekamsk international airports by the Federal Air Transport Agency (Rosaviatsiya).

The Russian Defense Ministry claimed to have intercepted one of the drones.

On Jan. 14, Kazanorgsintez, the country's only producer of polycarbonate and the largest producer of a number of other organic chemical products, was the target of a similar drone attack.