A coalition airstrike killed the ISIS-appointed governor of Mosul on Thursday, Iraqi police said. Hassan Hassan Saeed al-Jabouri, known as Abu Taluut, was killed in Qayyara about 18 miles south of Mosul, according to Maj. Gen Watheq Al-Hamdani, a senior regional Iraqi police commander leading a government campaign to retake Mosul. Jabouri, who had been in office for less than 25 days, is the second ISIS-appointed governor of Mosul to be killed by airstrikes in December. ISIS fighters overtook Mosul from Iraqi forces earlier this year. The Pentagon said it will begin efforts to retake the ISIS stronghold in January.