Violent firing is being heard in the district of Donetsk airport, BBC Ukraine reports.

Violent firing starts in district of Donetsk airport – mass media

Aircrafts and helicopters, probably Ukrainian, are flying in the sky.

At the same time, Twitter-account of self-proclaimed “Donetsk People’s Republic” said that Ukrainian forces are striking rocket-bomb blows on airport. “An attack aviation is involved”, - it is said in the report.

So-called “DPR” said earlier that they took Donetsk airport under control.

Representatives of Donetsk write in social networks that black smoke is above the airport and blasts are being heard.