A string of car bombs and shootings have ripped through Shiite and Sunni areas of Iraq, killing 70 people and escalating fears of a return to widespread sectarian bloodshed.
The attacks, some of which hit market places and crowded bus stops during the busy morning hours, are the latest in a recent spike in violence in Iraq that has targeted both Sunni and Shiite civilians and raised the death toll over the past week to more than 200 people.
The scenes have been reminiscent of the retaliatory attacks between the two groups that pushed the country to the brink of civil war in 2006-2007.
Tensions have been worsening since Iraq's minority Sunnis began protesting what they say is mistreatment at the hands of the Shiite-led government.
The mass demonstrations, which began in December, have largely been peaceful, but the number of attacks rose sharply after a deadly security crackdown on a Sunni protest camp in northern Iraq on April 23.
Iraq's Shiite majority, which was oppressed under Saddam Hussein, now controls the levers of power in the country.
Wishing to rebuild the nation rather than revert to open warfare, they have largely restrained their militias over the past five years or so as Sunni extremist groups such as al Qaida have targeted them with occasional large-scale attacks.
But the renewed violence in both Shiite and Sunni areas since late last month has fueled concerns of a return to sectarian warfare.
The worst of the latest violence took place in Baghdad, where nine car bombs ripped through open-air markets and other areas of Shiite neighborhoods, killing at least 33 people and wounding nearly 130.
The surge in bloodshed has exasperated Iraqis, who have lived for years with the fear and uncertainty bred of random violence.
"How long do we have to continue living like this, with all the lies from the government?" asked 23-year-old Baghdad resident Malik Ibrahim. "Whenever they say they have reached a solution, the bombings come back stronger than before. We're fed up with them and we can't tolerate this any more."
The predominantly Shiite city of Basra in southern Iraq was also hit with two car bombs - one outside a restaurant and another at the city's main bus station - killing at least 13 and wounded 40. There was no claim of responsibility but large-scale bombings bear the hallmarks of al Qaida in Iraq.
The violence also struck Sunni areas, hitting the city of Samarra north of Baghdad and the western province of Anbar, a Sunni stronghold.
A parked car bomb in Samarra went off near a gathering of pro-government Sunni militia who were waiting outside a military base to receive wages, killing three and wounding 13, while in Anbar gunmen ambushed two police patrols near the town of Haditha, killing eight policemen.
Also in Anbar, authorities found 13 dead bodies in a remote desert area. The bodies, which included eight policemen who were kidnapped by gunmen on Friday, had been killed with a gunshot to the head.