BAGHDAD — Seven anti-government demonstrators were killed Sunday in ongoing protests in the capital Baghdad, the latest fatalities in six days of clashes that have left more than 100 dead and thousands wounded.

Iraq’s government has scrambled to contain the popular anger that has racked Baghdad and a number of southern cities since Tuesday. Security forces responded with a crackdown on the spontaneous rallies of demonstrators demanding jobs, better services and an end to endemic corruption in the oil-rich country.

In the first official statement from the government accounting for the violence, Interior Ministry spokesman Saad Maan said Sunday that 104 people had been killed in the six days of unrest, including eight members of the security forces, and more than 6,000 wounded. He said an investigation was under way to determine who was behind the most deadly day of violence, in Baghdad on Friday.

The unrest is the most serious challenge facing Iraq two years after the victory against Islamic State militants. The chaos also comes at a critical time for the government, which has been caught in the middle of increasing U.S.-Iran tensions in the region. Iraq is allied with both countries and hosts thousands of U.S. troops, as well as powerful paramilitary forces allied with Iran.

Iraq’s most senior Shiite spiritual leader, Grand Ayatollah Ali al-Sistani, has urged the protesters and the security forces to end the violence while the country’s prime minister has called on the protesters to go home. Prime Minister Adel Abdul-Mahdi also pledged to meet with the protesters wherever they are and without any armed forces, to hear their demands.

Abdul-Mahdi defended the security forces, saying they were carrying out their duties and would only use force in extreme cases of self-defense.

“We can’t accept the continuation of the situation like this,” Abdul-Mahdi told his Cabinet late Saturday in televised remarks. “We hear of snipers, firebombs, burning a policeman, a citizen.”

Speaking on Sunday, Maan, the Interior Ministry spokesman, said protesters have burned 51 public buildings and eight political party headquarters. He claimed security forces didn’t confront the protesters, adding that “malicious hands” were behind targeting protesters and security members alike.

That contradicted accounts from demonstrators and journalists at the scene who have said they witnessed security forces firing on demonstrators. Some protesters said snipers also took part in breaking up the protests. Maan said most of those killed Friday were hit in the head and heart.

Officials had said earlier there were attempts at “sedition” from snipers who targeted security and protesters alike. They didn’t elaborate.

Late Saturday, the prime minister announced a number of measures designed to appease the protesters, including paying out unemployment benefits and providing subsidized housing and land for low-income groups.

Still, demonstrators took to the streets again Sunday– although in smaller numbers. Hundreds gathered on side streets near Sadr City, a Baghdad suburb, some four kilometers (2.5 miles) from Tahrir Square, which has been the destination of the weeklong rallies, although authorities have prevented protesters from reaching it.

A medical official in a local hospital and a security official said seven protesters were killed and 17 others wounded as they tried to break through a security cordon to head to the city center. The officials, who did not provide details, spoke on condition of anonymity because they were not authorized to speak to reporters.