BAGHDAD — Iraqi security forces clashed with anti-government protesters in the capital and other provinces Tuesday, killing two people and injuring more than 200, according to officials.

The protests, the most serious against Prime Minister Adel Abdul Mahdi’s government since it was formed a year ago, signaled that the war-weary country could face a new round of instability.

The protests were largely driven by economic issues, including what demonstrators saw as the government’s failure to improve public services and create jobs.

“We want the very basic rights: Electricity, water, employment, and medicine, and nothing else,” said Mohammed Jassim, a protester. “But this government is shooting at the crowd.”