Iraqi security services on Thursday found the bodies of 14 people from the same family bearing bullet wounds in the town of Al Mashahda, 35 kilometers (22 miles) north of Baghdad, a police official told Efe.
The victims were kidnapped Wednesday night by a group of armed men dressed in the uniform of the security forces.
Al Mashahda residents reported the discovery to the police, and the bodies were later taken to the medical examiner's office.
Separately, at least 14 people died and another 24 were wounded on Thursday in attacks staged in different cities around the country, an official with the Interior Ministry told Efe.
Most of the attacks took place on the outskirts of Baghdad and in the northern provinces of Salaheddin and Diyala.
Among the victims, the sources said, were civilians, soldiers and militia members.
In the bloodiest attack, three members of a pro-government Sunni militia died and two were wounded when a suicide bomber detonated the explosives he was carrying at a checkpoint in eastern Ramadi, the capital of Al Anbar province.
Iraq is experiencing a resurgence of sectarian and political violence that claimed the lives of 8,868 people - 7,818 of them civilians - in 2013, according to estimates from the United Nations. EFE