In Donbas enemy uses prohibited by Minsk II agreement heavy artillery - 120-millimeter mortars and artillery systems, said the Ministry of Defence. Donetsk and Mariupol directions remain the hottest area. According to the Ukrainian intelligence, the enemy enhances combat readiness of its troops, as well as its advanced units at Slavyansk,Mariupol and Severodonetsk directions. In the Defense Ministry said that the OSCE Special monitoring mission was informed about presence of tanks, artillery systems and "Grad" systems near Gorlovka, Komunarivka, Debaltsevo, Makiyivka and Buhayivka. One Ukrainian soldier was killed, another six were wounded in the Anti-Terrorist Operation (ATO) zone in eastern Ukraine in the past 24 hours, presidential administration speaker for ATO issues Andriy Lysenko said.