BAGHDAD — A new wave of car bombs ripped through commercial areas in the Iraqi capital and areas to the south Tuesday, killing at least 33 people and wounding dozens in the latest coordinated militant assault, officials said.
The blasts came as a firebrand Shi’ite cleric delivered a blistering criticism of Prime Minister Nouri al-Maliki in a rare televised address. Moqtada al-Sadr also reiterated his earlier declaration that he is retiring from politics.
There was no immediate claim of responsibility for the explosives-laden parked cars that detonated Tuesday.
But their targets — shopping streets and bus stations — are frequently hit by the Al Qaeda breakaway group that is the country’s main insurgent force, as it tries to undermine government efforts to maintain security.
The group, known as the Islamic State of Iraq and Levant, has taken responsibility for similar attacks before.
In Baghdad, four such bombings killed at least 17 people and wounded 49 others. The deadliest hit a bus station, leaving seven dead and 18 wounded.
Police say another four bombs went off simultaneously in the southern city of Hillah, killing at least 11 people and wounding 35 others. Hillah is about 60 miles south of Baghdad.
Outside Hillah in the town of Musayyib, about 40 miles south of Baghdad, a parked car bomb explosion killed five civilians and wounded 13.
Medical officials confirmed the figures. All spoke on condition of anonymity as they were not authorized to release information.
The attacks came a day after a series of explosions in the capital left at least 23 dead. Iraq is experiencing a resurgence in violence to levels unseen since the worst of the country’s sectarian bloodletting began to subside in 2007.
Also Tuesday, Sadr repeated an earlier announcement that he is retiring from politics, but also called on his followers to vote in Iraq’s upcoming elections and berated current rulers as ‘‘blood-thirsty wolves.’’
Speaking from his home in the southern revered Shi’ite city of Najaf, Sadr said he would not back specific candidates, but nonetheless said his followers should go to the polls in large numbers in April’s vote to ensure the government ‘‘will not fall into the hands of dishonest and cunning people.’’
He did not make clear why he had retired, although he leveled harsh criticisms at politicians in his movement who he said had exploited the Sadr family name.
Sadr first announced that he had decided to quit politics in a statement on Saturday. He has made such announcements before, but the declarations in recent days have been more emphatic than in the past.
Sadr, who at around 40 years of age is young for an Iraqi politician of his stature, has long been a wild card in Iraqi politics.
Sunnis held his followers responsible for large-scale sectarian killing, but he has also at times attempted to reach out to Sunnis and is a strong critic of fellow Shi’ite Maliki, who he implied Tuesday was a ‘‘tyrant.’’
He gained broad support especially from poorer Shi’ites after the 2003 US-led invasion that toppled Saddam Hussein, whose regime killed his father and grandfather.
His movement provided supplies and security for Baghdad residents in the chaotic aftermath of the invasion, but also spawned a militia that fought the Americans and is blamed by many Iraqis for much of the sectarian bloodshed of 2006-2007.
In recent years, he has played the role of political kingmaker.
Sadrists hold 40 out of 325 seats in the legislature, making them the largest single Shi’ite bloc, and hold six Cabinet seats.
He is allied with critics of Maliki who accuse the prime minister of consolidating power in his hands and taking control of state institutions.