Seven bomb explosions killed 26 people and wounded 67 in the Iraqi capital on Monday, police and medics said, as security forces battled militants around the western cities of Falluja and Ramadi.
The bloodiest attack occurred in Dsheer district in southern Baghdad, where a car bomb near a crowded market killed seven people and wounded 18.
No group claimed responsibility for the blasts. But insurgents, some of them linked to al Qaeda, are widely blamed for a surge in violence in the past year apparently aimed at undermining the Iraqi government and provoking a return to all-out sectarian strife.
Al-Qaeda militants and their local allies seized control of Falluja and parts of Ramadi on Jan. 1, exploiting resentment against the government for policies perceived as unfairly penalising their once-dominant community.
Police said that sporadic fighting flared around Falluja and Ramadi, where at least one anti-government gunman was killed and two were wounded.