Iraq put 21 men to death on Tuesday, a senior justice ministry official told AFP, the latest in a series of mass executions that have drawn international condemnation.
All of the men were Iraqis and had been convicted on anti-terror charges, the official said, speaking on condition of anonymity.
The latest executions brought to 50 the number of times Baghdad has carried out the death penalty so far this year, despite widespread calls for a moratorium on the country's use of capital punishment.
Justice Minister Hassan al-Shammari insisted last month that Baghdad would continue to implement the death penalty in the face of widespread calls for it to issue a moratorium.
Iraq's executions have sparked concern from the United Nations, as well as from Britain, the European Union and rights groups Amnesty International and Human Rights Watch.