"On Sunday afternoon, Kiev deployed combat jets for the first time since last summer, hitting populated areas of Gorlovka with heavy bombs," said Eduard Basurin, deputy commander of DPR militia.
"As a result, more than 30 civilians were killed, including children," Basurin said.
The DPR commander noted that as the SU-24 attack aircraft were dropping bombs from about 5,000 meters (more than 3 miles) above the ground, it is clear that Kiev forces were not trying to hit any specific military targets.
The conflict in southeastern Ukraine erupted in mid-April, 2014, when Kiev launched a military operation to suppress independence supporters in Donetsk and Luhansk who refused to recognize the legitimacy of a new government that came to power following a February coup.
On September 5, 2014, the opposing sides reached a ceasefire agreement at a Contact Group meeting in Minsk, however, the clashes between the sides have continued.
According to the latest update by the World Health Organization (WHO), almost 5,000 people have lost their lives and nearly 10,500 have been wounded in Ukraine since the ceasefire between independence supporters and Kiev-led forces had been declared.