Eight bodies with signs of torture were found in Baghdad on Friday, more apparent victims of the sectarian death squads that roam the capital, and a policeman was killed in a bomb attack.
The corpses of seven men and one woman were all found in east Baghdad neighbourhoods.
They were blindfolded, and had their hands and legs bound, police said.
US commanders said since the start of Ramadan, which Sunnis started observing last on Saturday and Shiites on Monday, there has been a spike in sectarian violence in Iraq, centered in the capital.
A traffic policeman was killed and two civilians injured in a bombing attack in downtown Baghdad, police said.
Insurgents used what is becoming an increasingly common technique -- detonating one bomb to attract attention, then detonating a second bomb when people had come to look, causing the casualties, police 1st Lt Mohammed Khayun said.
In the Sadr City neighborhood of Baghdad, a stronghold of radical Shiite cleric Muqtada al-Sadr and his Mahdi Army militia, a funeral procession was held for Abdul-Karim Abdul-Wahid al-Shamari.
The man, one of al-Sadr's lieutenants, was killed Thursday night on his way back to Baghdad from Najaf, police Col Kadhim Abbas Hamza said.