The situation at Iraq's largest oil refinery is a murky, smoky one: A refinery official on the scene earlier told Reuters that militants have "managed to break in" and occupy 75% of the Baiji refinery. Though the Iraqi army now says it has beaten them back and killed 40 of them, that claim could not be independently verified, the BBC reports, and the New York Times says reports from Baiji "sharply contradict" that assertion. It talks to sources, including a refinery worker and an Iraqi army officer who fled the scene, who say fighters with the Islamic State in Iraq and Syria are in control, troops have been taken prisoner, and storage tanks are burning. The refinery sits 130 miles north of Baghdad, and there were reports that ISIS had taken over the town of Baiji last week.