(AGI) Donetsk, Sept 13 - Shots are still being fired in westDonetsk, and a huge plume of smoke is rising above the airport,local sources said. This is yet another violation, the mostsignificant thus far, of the ceasefire agreement signed by Kievand the separatists in Minsk on Sept. 5. Donetsk airport isstill in Ukrainian government hands, while the city is beingcontrolled by separatists. Donetsk, an industrial hub, is thelargest city in eastern Ukraine, with around a millioninhabitants. . .