Story highlights "According to preliminary figures, between 15 and 20 prisoners escaped a Muthanna facility... We still don't know how it happened," the source said. Around 20 inmates have escaped prison in southern Iraq holding terror and drug trafficking convicts, a security source told Sputnik on Sunday. "According to preliminary figures, between 15 and 20 prisoners escaped a Muthanna facility... We still don't know how it happened," the source said. A manhunt is underway and security officers are combing areas near the prison. (With inputs from agencies)