The central criminal court in Baghdad handed 24 of 28 defendants the maximum sentence over the "Speicher" massacre, named after the base from which the victims were captured before being executed.
"After deliberations, the court finds that the evidence collected is sufficient to convict 24 defendants," said the judge. "The court decided they will be executed by hanging."
All 24 denied any involvement in the massacre, committed during the first days of the Islamic State group's broad offensive in Iraq last year.