Several explosions were heard in Kyiv during an air raid tonight as air defense forces worked, reported the Mayor of Kyiv Vitaliy Klitschko. “Air defense is working in the capital. Another group of UAVs is moving towards Kyiv,” the mayor said. Klitschko added that the air defense activity can be heard on the left bank of the capital in the Darnytskyi district. Earlier, the Ukrainian Air Force reported that attack drones were moving from Boryspil to the capital. Russians intensify combined attacks In recent weeks, Russian troops have intensified combined attacks on Ukrainian cities using attack…