BAGHDAD — A string of bombings Sunday across Iraq, many in Shiite-majority cities, killed at least 42 people and wounded dozens, officials said, a grim reminder of the government's failure to stem the uptick in violence that is feeding sectarian tensions in the country.
There was no immediate claim of responsibility for the latest attacks, but waves of bombings are frequently used by al-Qaida's Iraq branch.
The Sunni militant group and other Sunni extremists often targets Shiite civilians in an effort to undermine the Shiite-led government. Al-Qaida's extremist ideology considers Shiites heretics.
The deadliest of Sunday's attacks, many of which struck busy commercial areas, happened in the southern city of Hillah, 60 miles south of Baghdad. Back-to-back car bombings hit an outdoor market there, killing eight people and wounding 22, police said.