Twenty two tanks from Russia entered Ukraine on March 28, the press service of Donetsk Regional State Administration wrote on Twitter.

"They [tanks] were heading from the side of [the Russian town of] Gukovo [in Rostov region] to a repair and engineering works in Sverdlovsk, Luhansk region," the tweet reads.

Moreover, the press service reported that up to 15 Grad multiple rocket launchers operated by Russian-backed militants were shelling civilians in the town of Horlivka in Donetsk region in the early hours of March 29.

"They were shelling from the area between the village of Holmivsky and the village of Zaitseve," another tweet said.

The regional administration also reported with reference to intelligence that green boxes up to two meters long were being uploaded from vehicles of Russia's 22nd 'humanitarian' convoy in Donetsk on March 27.

"These are 122mm caliber Grad rockets," the tweet said.