Iraqi officials say bombings Sunday in the Baghdad area have killed at least 23 people.
Just south of the capital, authorities say a suicide car bomber killed at least 15 security force recruits and wounded about 20 others.
Earlier, two car bombs killed at least eight civilians in the capital. Officials say several other people were wounded in the blasts.
Iraqi officials have also increased the death toll from Saturday's suicide bombing in northern Iraq, saying at least 130 people were killed and more than 250 wounded.
A truck packed with explosives blew up at a crowded outdoor market in Amrli village about 165 kilometers north of the Iraqi capital), leveling homes and shops. Rescuers spent hours digging victims from the rubble.
Also Saturday, a car bomb aimed at a military checkpoint in eastern Baghdad killed at least two Iraqi soldiers and one other person.
The latest burst of violence comes just days after Iraq's government reported a recent significant drop in the civilian death toll, coinciding with a US-led security crackdown in and around Baghdad.