IS militants leave behind dozens of dead civilians, a trashed refinery complex, and a town choked by oil fires. Iraq security forces screen Qayarah residents displaced to a camp in Tina, 65 kilometers south of Mosul, on Aug. 22, 2016. (TOM ROBINSON) Iraqi security forces retook the oil town of Qayarah on Tuesday, an important if incremental step toward liberating Mosul from the self-proclaimed Islamic State (IS) group.”It is going well, as it was planned,” said Sabah Numan, a spokesman for Iraq’s elite Counter-Terrorism Service (CTS), which took part in the offensive. “There has been big, rapid progress.”The victory has come at a heavy cost, however. Dozens of civilians reportedly died in the fighting, according to several eyewit… This content is for registered users. Please login to continue. If you are not a registered user, you may purchase a subscription or sign up for a free trial .