At least 30 people were reported killed or found dead in different parts of Iraq on Saturday.
Iraqi security sources said that police found 17 bodies - apparent victims of sectarian death squads - bearing signs of torture in different areas of Baghdad.
All but two were found on the predominantly Sunni western side of the Tigris river that divides the capital where sectarian violence appears to be on the rise.
|US patrols continue to be subjected to daily|
attacks and roadside bombings [AFP]
Assailants in the northern city of Mosul killed Dr Adib Ibrahim Mahmoud, head of the Islamic Medical Association in Iraq, after he returned from his clinic.
Mosul also witnessed violent clashes between fighters and the US forces in the industrial district.
In Rayhana, in the western province of Anbar, a person wearing an explosive belt blew himself up near a US patrol on Saturday.
The attack was followed by a second rocket attack, destroying a US vehicle in the same area which was closed by the US forces.
In Haqlaniya, near the city of Haditha, a US patrol came under grenade attack, wounding a number of soldiers, according to Iraqi police.
In Samarra, fighters dynamited the house of the brother of the head of the municipal council after emptying moving the occupants to the city's south.
Official's son hurt
Also on Saturday, the son of Tariq al-Hashimi, the Iraqi vice-president, was wounded when an explosive device went off shortly before noon as he was passing in a private car through west Baghdad's al-Amirya neighbourhood.
In a separate incident, a woman was killed and three others injured in a bomb explosion near a house at al-Shaadiya township in northeast Baghdad.
Another bomb went off in nearby al-Wajihiya area.
In Karbala, a senior police officer said that police had arrested in the city's centre a fighter with links to al-Qaeda in Iraq.
Police said during initial investigations, the detainee admitted that he had killed the police chief of west Karbala's Ain al-Tamr district in September last year and six members of the Jabor clan in exchange for money for al-Qaeda in Iraq.