At least two Sunni Muslim mosques have been attacked in Iraq in apparent retaliation for the execution of a senior Shi'ite cleric in Sunni-ruled Saudi Arabia, officials and police said on Monday.

The interior ministry in Baghdad confirmed the attacks late Sunday in Hilla, around 100 km south of Baghdad. It didn't confirm reports that at least one person was killed.

Iraq has faced sectarian bloodletting for years, mainly between the Sunni minority and Shi'ite majority that was empowered after the US-led invasion in 2003.

Prime Minister Haider Al Abadi ordered the provincial authorities ``to chase the criminal gangs'' who attacked the mosques.

He blamed the attacks on "Daesh and those who are similar to them,'' according to a statement that refers to Islamic State by one of its Arabic acronyms.

The attack on the Ammar bin Yasir mosque in central Hilla destroyed its dome and several walls, according to a Reuters TV cameraman who visited the site. A provincial council member and a police source said a guard inside the building had been killed.

Another mosque in Hilla's northern outskirts, Al Fath Al Mubeen, was also attacked, the council member and police source said.-Reuters