BAGHDAD — New attacks in Iraq killed 13 people and wounded dozens on Tuesday, officials said, after a bloody day that claimed more than 100 lives across the country.
The latest spiral of violence, which targeted both Sunni and Shiite communities, has increased fears that Iraq is sliding back to the brink of civil war.
A suicide bomber set off his explosives-laden vest at a military checkpoint in the town of Tarmiyah, 50 kilometers (30 miles) north of Baghdad. The blast was followed by militants who opened fire at the Iraqi troops, killing three soldiers and wounding nine, a police official said.
In Baghdad's western suburb of Abu Ghraib on Tuesday night, a bomb targeted Sunni worshippers as they were leaving a mosque, killing six and wounding 18, two police officers said.
Medical officials confirmed the casualty figure. All officials spoke on condition of anonymity as they were not authorized to release information.
In the northern city of Tuz Khormato, two parked car bombs went off simultaneously, killing three civilians and wounding 38 people, said Mayor Shalal Abdool. The town is about 200 kilometers (130 miles) north of the Iraqi capital.
And in Kirkuk, 290 kilometers (180 miles) north of Baghdad, three bombs exploded back-to-back at a sheep market, killing one person and wounding 25, police Col. Taha Salaheddin said.
The attacks came as authorities raised the death toll from Monday's wave of bloodshed — a series of blitz attacks stretching from north of Baghdad to the southern city of Basra and targeting bus stops, open-air markets and rush-hour crows — to 113 from 95, after many of the wounded died of their injuries.
No one has so far claimed responsibility for the attacks, but such systematic carnage carries the hallmarks of the two sides that brought nearly nonstop chaos to Iraq for years: Sunni insurgents, including al-Qaida's branch in Iraq, and Shiite militias defending their newfound power after Saddam Hussein's fall.
Hours after Monday's stunning bombings, Prime Minister Nouri al-Maliki accused militant groups of trying to exploit Iraq's political instability and vowed to resist attempts to "bring back the atmosphere of the sectarian war."
Sectarian tensions have been worsening since Iraq's minority Sunnis began expanding protests over what they say is mistreatment at the hands of the Shiite-led government.
Many Sunnis contend that much of the country's current turmoil is rooted in the policies of al-Maliki's government, which they accuse of feeding sectarian tension by becoming more aggressive toward Sunnis after the U.S. military withdrawal in December 2011.
Mass demonstrations by Sunnis, which began in December, have largely been peaceful. However, the number of attacks rose sharply after a deadly security crackdown on a Sunni protest camp in northern Iraq on April 23.
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