Russia has launched a series of attacks on military installations in Ukraine's Donbass and Mykolaiv regions. Al-Jazeera quoted the Defense Ministry as saying. Five Ukrainian military posts have been destroyed in a missile strike. Russian forces also hit three warehouses in the Zaporizia region. Russian news agencies say the Russian air force attacked a Ukrainian weapons and equipment warehouse at a tractor factory in Kharkiv in northeastern Ukraine. Earlier, President Volodymyr Zelensky alleged that a number of civilians had been killed and many more injured in missile strikes across Ukraine. He also called Russia a terrorist state. The missile struck a residential building and recreation center in Sergeyevka, 50 miles south of the Odessa port in the Black Sea, on Friday, local time. It killed 21 people and injured several others. Russia has denied responsibility for the attack. According to AFP, the center of the Danbas area and some surrounding areas were destroyed in the airstrikes. Witnesses claim that there was a cluster bomb attack on Friday. This caused damage and loss of life over a wide area.