Andriy Lysenko: OSCE observe militant move heavy arms, used tanks and Grad missile systems in Maryinka offensive
ATO Staff spokesman: Pro-Russian militants fire at Ukrainian troops from heavy weapons along entire frontline
ATO Staff spokesman: Pro-Russian militants attack Ukrainian forces using mortars, grenade launchers and large-caliber machine guns
Andriy Lysenko: OSCE observes militant attacks at Avdiivka coke-chemical plant, over 200 explosions near Donetsk airport
