Approximately 72 of the mass graves that ISIS extremists left behind have been uncovered. Many more mass graves will likely be found as ISIS retreats.
In Syria, AP obtained 17 mass grave locations, including one with hundreds of bodies from a single tribe. In total, the number of the dead ranges from 5,200 to well over 15,000.
Scraped earth shows the likely site at Badoush Prison near Mosul, where more than 600 inmates died, according to exclusive satellite photos from the imagery intelligence firm AllSource Analysis.
The graves were discovered in Iraq and Syria, and many more are expected to be found as the extremist group loses territory.