Violence in and around the Iraqi capital on Saturday has left at least 26 people dead and dozens of others wounded.
Police say two car bombings in Shi'ite parts in western Baghdad, including at a security checkpoint in the neighborhood of Kadhimiya, killed 15 people.
Elsewhere, a suicide bomber detonated his explosives belt in a market north of Baghdad, killing at least seven people, medical and police officials said.
The attack took place about 28 kilometers or 17 miles north of the capital, between the towns of Tarmiyah and Mishahda. The area has been the scene of clashes between Iraqi forces and Islamic State group fighters, who have taken control of large sections of northern and western Iraq this year.
In other violence, four Iraqi soldiers died in a "friendly fire" incident in the town of Udaim, 90 kilomters or 56 miles northeast of Baghdad.
The soldiers wounded by IS fighters were being taken to the hospital when Shi'ite militia volunteers mistook them for insurgents and fired a rocket-propelled grenade at their vehicle, police and medical officials said.
Some information for this report was provided by Reuters.