A pro-Russian gunman takes cover during shooting near the airport, outside Donetsk, Ukraine, on Monday, May 26, 2014.(AP Photo/Vadim Ghirda)
A military truck with armed pro-Russian militants drives through a police check-point towards the airport of the eastern Ukrainian city of Donetsk May 26, 2014. A journalist near Donetsk international airport in eastern Ukraine heard gunfire and explosions in the vicinity and saw smoke billowing from inside the perimeter as fighter jets flew high overhead on Monday. On the day after a presidential election, gunmen forced the closure of the airport to flights and took over the terminal, demanding the withdrawal of Ukrainian forces from the facility.
Pro-Russian insurgents arrive, near the airport outside Donetsk, Ukraine, Monday, May 26, 2014. Ukraine's military launched airstrikes Monday against the separatists who had taken over the airport in the eastern city of Donetsk, suggesting that fighting in the east is far from over. (AP Photo/Vadim Ghirda)
Pro-Russian militia men take positions near the airport, outside Donetsk, Ukraine, on Monday, May 26, 2014. (AP Photo/Vadim Ghirda)
A Ukrainian helicopter Mi-24 gunship fires decoy flares over a residential area moments after attacking Donetsk international airport May 26, 2014. Three Ukrainian helicopter gunships mounted a heavy attack on the rebel-held international airport terminal at Donetsk on Monday, firing rockets and cannon and throwing out decoy flares as militants shot at them from the ground. (photos by/Yannis Behrakis)
A pro-Russian armed militant wearing a shirt bearing an emblem of a former Ukrainian special force's police unit "Berkut," which means golden eagle, is seen through a camouflage net as he guards a checkpoint blocking the major highway which links the Russian city of Rostov-on-Don, and Kharkiv, outside Slovyansk, Ukraine, Monday, May 26, 2014. On Monday, some pro-Russians blocked off the road to the airport in Donetsk, a major eastern city, apparently causing delays to many flights. (AP Photo/Alexander Zemlianichenko)