And the UN envoy to Iraq urged the country's leaders to meet to resolve long-running political crises that have paralysed the government and been linked to its inability to reduce the violence.
As of today, according to AFP 507 people were killed and 1,287 wounded, making May the deadliest month in at least a year, according to the data, based on reports from security and medical sources.
May is the second month in a row in which more than 400 people have been killed, for a total exceeding 960 people in less than two months.
The blast comes a day after a wave of attacks, including bombings in Baghdad that mainly targeted Shiite areas, killed 58 people and wounded 187, according to officials.
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"I once again urge all Iraqi leaders to do everything possible to protect Iraqi civilians. It is their responsibility to stop the bloodshed now," UN envoy Martin Kobler said in a statement today.
"It is the politicians' responsibility to act immediately and to engage in dialogue to resolve the political impasse and not let terrorists benefit from their political differences," he said.
The US embassy, meanwhile, issued a statement in which it said it "strongly condemns the wave of bombings," expressing condolences to the victims.