Fighting in Ukraine's eastern conflict zone has intensified in recent days / Photo by UNIAN

"Anti-government militants fired Grad rockets at the villages of Tonenke and Orlivka, while mortars were fired at the village of Chernukhyne with its civilians, and Ukrainian forces near Avdiivka, Pisky and Nikishyne."

There has also been fierce fighting in Donetsk and its suburbs, with the insurgents firing on residential districts near the city’s Putylovskiy bridge, TSN said.

The militants have also stepped up their daily attacks on Donetsk airport, using anti-tank guns in addition to small arms and rocket-propelled grenades.

The militants on Thursday launched a five-hour attack on Donetsk airport,  with one Ukrainian soldier being killed in the fighting.