Ukraine says Russian special forces involved in Donetsk airport attacks

Ukrainian flags are pictured at Donetsk airport, eastern Ukraine, September 1, 2014. REUTERS/Maxim Shemetov

KIEV (Reuters) - The Ukrainian military accused Russian special forces on Monday of taking part in attacks on the strategically important Donetsk airport in eastern Ukraine, where fighting has intensified in recent days despite a September ceasefire deal.

Kiev also accused Russia of smuggling ammunition for heavy artillery into the area to step up the assault.