Their attacks included the use of heavy arms. They shelled the Ukrainian forces with tanks, mortars, grenade launchers, heavy machine guns, and small arms. Most attacks are reported near the strategic government-controlled seaport Mariupol near the border with Russia, and in the vicinity of separatist-held Donetsk. Two Ukrainian soldiers were killed and eight were wounded in the hostilities in the past 24 hours, military spokesman Andriy Lysenko told a press briefing in Kyiv Friday noon.