The central market in the eastern Ukrainian city of Luhanks...on fire after government shelling.<br/> <br />Near the other rebel-held city of Donetsk, in Makiiva, a courthouse burns after shelling there.<br/> <br />Both cities have seen artillery strikes by government forces -- tightening their squeeze on pro-Russian separatists as they try to end a four-month-long conflict that's killed more than 2,000 people.<br/> <br />Scores of refugees have fled the fighting, some of them...to here...<br/> <br />A camp in Russia's Rostov region across the border.<br/> <br />(SOUNDBITE) (Russian) REFUGEE AT CAMP, MINER, ROMAN DUBCHAK, 40-YEARS-OLD, SAYING:<br/> <br />"This is not my war. I didn't order it. Neither did my mother, or my mother-in-law, or my father in law, or all of my children. We've left behind everything we had. Maybe there's nothing left there."<br/> <br />These may be the lucky ones.<br/> <br />It's estimated that about 70 people per day are now killed in the fighting.<br/> <br />And relief agencies say residents of Luhansk
