Two suicide car bombers have killed 20 people around the town of Ramadi, north of Baghdad, Iraqi police say.
Two suicide car bombers have killed at least 24 people near the Iraqi city of Ramadi, west of Baghdad, police say.
The first exploded in a busy market in a town just outside Ramadi, killing 10 people and injuring 30.
The first exploded in a busy market in Albu Thiyab, to the east of Ramadi, killing at least 15 and injuring 30.
Five policemen and five bystanders were killed some 15 minutes later, with 10 others wounded.
The other targeted a police checkpoint some 15 minutes later in the town of al Jazeera. Five police officers and five bystanders died. Ten people were hurt.
The attacks came after about 100 Iraqis were either killed or found dead on Sunday, and eight American soldiers and a European journalist died in attacks.
Correspondents say the attacks may be linked to an ongoing power struggle between al-Qaeda and Sunni tribes.
Six US troops and a journalist, who was not identified, were killed by a roadside bomb in Diyala province, the US military said.
Frequent target
The two other US soldiers died in attacks in the capital, Baghdad.
"Ten were killed in each explosion and both were from suicide car bombs," said Tariq al-Dulaimi, a senior security official in Anbar province.
Regular target
The BBC's Andrew North in Baghdad says this is an area where local tribes have turned against al-Qaeda in the past six months, provoking frequent reprisal attacks by supporters of the extreme Sunni group.
Monday's bombings in Ramadi were both carried out by suicide car bombers, police and security sources said.
The US military believes this tribal alliance is helping to reduce violence in what has long been an insurgent stronghold, our correspondent says.
"Ten were killed in each explosion and both were from suicide car bombs," Tariq al-Dulaimi, a senior security official in Anbar province, told the AFP news agency.
It has also been stepping up raids on al-Qaeda which it blames for most of the car bombings.
The Reuters agency said the first bomb hit a market in the town of Albu Thiyab, just outside Ramadi.
The US announced it had detained another 15 suspected members of the network on Monday. But the suicide car bombings continue - there were three reported on Sunday.
The second attack targeted a police checkpoint in a town called al-Jazeera, a police colonel said.
In other developments:
Ramadi and its outlying town and villages have long been a target for mainly Anbar's Sunni insurgents, and are frequently hit by bombers.
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Six US troops and a journalist, who was not identified, were killed by a roadside bomb in Diyala province, the US military said. Two other US soldiers died in attacks in Baghdad.
A prominent Sunni group, the Iraqi Islamic Party, also again accused Shia militiamen of attacks on Sunni mosques in Baghdad. It said the imam and a preacher were abducted from a mosque in the district of Bayaa.
