Iraqi authorities on Monday hanged 21 convicted terrorists and murderers at the notorious Nasiriyah prison in the country’s south, according to an interior ministry statement. Deutsche Welle reports that the men had been convicted under a 2005 counter terrorism law, which carries the death penalty. Authorities did not give details about specific crimes, but the interior ministry statement said some of those executed were involved in two suicide attacks that killed dozens of people in the northern town of Tal Afar. Iraq’s government has declined to provide details about detention centers or prisoners, including how many people are facing terrorism-related charges but according to some studies, around 20,000 are being held for purported IS links.