BAGHDAD, Iraq (CNN) -- Bombs in Baghdad and Baquba killed four people, two police officers among them, and wounded seven others Sunday morning, an Interior Ministry official said.
A wounded Iraqi woman cries at a Baquba hospital after being caught in a blast Sunday at a police building.
One death came about 9 a.m. when a parked car bomb detonated near the Buratha Shiite mosque in northwestern Baghdad.
The blast apparently targeted a convoy belonging to an endowment that manages Shiite mosques in the war-ravaged nation. Three people were wounded in the explosion.
A roadside bomb attack an hour earlier struck a police patrol in western Baghdad's Mansour district, the Interior Ministry official said.
Two police officers were killed and four others were wounded, he said.
In another attack targeting authorities, a suicide car bomber slammed into the emergency police headquarters in central Baquba about 9:30 a.m., a Baquba police official said.
Twelve people were hurt in the blast, including three police officers. The blast also damaged the police headquarters and three civilian automobiles, the police official said.
The suicide bomber was the only person killed in the blast.
The U.S. military told CNN it has no evidence of a reported attack by al Qaeda in Iraq militants on an Iraqi village near Baquba on Saturday.
A Baquba police official said at least 10 people were killed when the AQI insurgents raided the village of Adwaila -- home to both Sunni and Shiite Iraqis -- who have opposed al Qaeda, making the village a target.
"CF [coalition forces] and IA [Iraqi army] searched the area by air and by ground for several hours and found no evidence of this attack," Task Force Iron spokeswoman Maj. Peggy Kageleiry told CNN in an e-mail sent on Sunday.
"An IA team that was called to investigate the alleged incident was attacked by small arms fire and not anywhere on the scale described in the original report from the media."
The police official said al Qaeda in Iraq insurgents launched mortars into the village north of Baquba and then sent in dozens of fighters with small arms to storm the village. The police officials aid at least five homes were burned and destroyed. E-mail to a friend
CNN's Mohammed Tawfeeq contributed to this report.