Iraqi police say gunmen have killed 23 members of the Yazidi Kurd religious minority in northern Iraq.
Police say the gunmen stopped buses carrying the Yazidis home from work outside Mosul. They say the 23 were dragged to the side of the road and shot.
Earlier on Sunday, two suicide car bombers in Baghdad killed 12 people near a police station in the mostly Shi'ite al-Bayaa neighborhood.
Iraqi Prime Minister Nouri al-Maliki says sectarian violence in Iraq is largely under control and blamed recent bombings on al-Qaida. He discussed the situation with his Egyptian counterpart, Ahmed Nazif, in Cairo.
Meanwhile, the US military says an airstrike killed 15 al-Qaida-linked militants south of Baghdad. Ground troops later killed three more suspected militants.
In Basra in southern Iraq, British soldiers killed a man during a raid on his house.
And the US military said on Sunday that an American soldier was killed in an attack on a base southwest of Baghdad Saturday.
General David Petraeus, the top US commander in Iraq, told "The Washington Post" newspaper the increase in American and Iraqi troops since February has improved security in Baghdad and Anbar province. But he said attacks have risen sharply in other regions.