The Pope prays for the victims of the suicide bombing that killed more than 30 people in a Baghdad market and wounded several dozen.
It was the eve of the Muslim festival of Sacrifice, the so-called Aid Al Adha, and people were doing the shopping to prepare for that day.
The Islamic State claimed responsibility for the attack, carried out by a kamikaze wearing a belt full of explosives.
It was the bloodiest attack in Baghdad in the last six months.
The Vatican Secretary of State sent a telegram to the nuncio in Iraq to tell him that the Pope is deeply saddened by the news and that he is praying for the families and friends of those who died.
He also prays that violence “does not diminish the efforts” of those who work for peace.