At least 14 people were killed, 10 of them members of the security forces, and another 23 were wounded in attacks in various parts of Iraq, an official source told Efe.

The bloodiest attack took place in Tarmiya, some 40 kilometers (25 miles) north of Baghdad, where a suicide bomber detonated has belt loaded with explosives at the entrance to military barracks, killing six soldiers and wounding another 13.

The source said that four officers died and another nine were injured in a similar attack on a police station in the town of Auad al Hasan, 30 kilometers (20 miles) north of Baghdad.

Meanwhile, a group of armed men using guns with silencers shot and killed a police officer in the al-Salij area, north of Baghdad.

The source added that a civilian was slain by an armed group that burst into his home in the al-Usud community in the eastern province of Diyala.

At the same time, a shepherd died and his brother was injured by a land mine explosion near the town of Mandali in Diyala.

Political and sectarian violence has surged this year in Iraq, with security forces and the country's Shiite Muslim majority the main targets.

Nearly a thousand people were killed last month, according to figures from the U.N. mission in Baghdad.

This Tuesday, Iraqi authorities executed 11 people found guilty of crimes of terrorism. EFE