Thirteen attacks were observed in the Mariupol sector, six in the Donetsk sector, and one in the Luhansk sector.In the Mariupol area, the hostiles engaged an infantry combat vehicle, small arms and grenade launchers in attacks on Shyrokyne. However, the Ukrainian side characterizes the situation as being generally corresponding to the regime of silence, except for some provocation by the Russian-terrorist groups."The truce was generally complied with in the combat zone", the the army operation staff said.