AlQa'dah 08, 1435, September 03, 2014, SPA -- Pro-Russian separatists in eastern Ukraine are retaking territory vacated by government troops. In Donetsk, the rebels have retaken the city's airport, the biggest in the region, Russian state television reports, according to dpa. Separatist leaders say government troops are withdrawing across the territory of the self-proclaimed Donetsk People's Republic. "We do not quite understand the reason for this," the rebel website Novorosinform.org quotes rebel commanders as saying.