REUTERS/Lucy NicholsonIraqi media are reporting that ISIS militants have opened the taps of an oil pipeline in the town of Qayyarah, in northern Iraq. Crude is flowing in the streets, as images from Qayyarah show, and people are worried about what will happen if someone decides to set the crude on fire. Iraqi News notes that this is not the first time that the ISIS militants have resorted to this response: before Qayyarah was liberated by the Iraqi army and the U.S.-led coalition forces, the terrorist group spilled crude from the local pipeline into the Tigris River, which runs through the town, causing major environmental damage. There are still ISIS militants scattered in the area around Qayyarah, so it is possible they will do more damage if given the chance, Iraqi media warn. Qayyarah was retaken last Wednesday, according to the Nineveh Council.