Two Baghdad blasts killed at least 43 and wounded 79 others in crowded areas of the capital as six ministers from Iraq’s largest Sunni Muslim bloc withdrew from Prime Minister al-Maliki’s coalition government.

The six ministers from the National Accordance Front, the main Sunni political bloc, announced their withdrawal from Mr. Maliki’s coalition government at a Baghdad news conference yesterday.

“The National Accordance Front has promised the Iraqi people to withdraw from the current government that didn’t respond to our demands,” the bloc said in a statement carried on the Web site of President Talabani’s Patriotic Union of Kurdistan Party.

The bloc has accused Mr. Maliki’s government of failing to tackle Shiite militias, whom they accuse of targeting Sunni citizens, and asked for more input on security matters. Some 44 National Accordance Front members will continue to serve in the 275-seat Parliament when it returns on September 4 from a summer recess that began on July 30.

The Parliament went ahead with a vacation after lawmakers failed to pass legislation, such as a provision for sharing oil revenue, which the U.S. government encouraged as vital to reconciling Iraq’s warring communities.

Mr. Maliki spoke with President Bush yesterday via video-teleconference for about 45 minutes and the two men discussed the dispute, White House Press Secretary Tony Snow said in Washington.

Mr. Maliki promised Mr. Bush that he is “actively working” to address the concerns of the Sunni ministers “and find a resolution acceptable to all party blocs,” Mr. Snow said.