Authorities in Iraq say at least 26 people were killed in a series of attacks Monday.

They say at least seven people died in a suicide bombing in western Baghdad. Authorities say the blast near municipal offices in Abu Ghraib injured 13 people.

Police say at least three students were killed on their way to final exams when a roadside bomb exploded near their mini-bus in Baghdad's Shi'ite neighborhood of Sadr City. At least 12 people were injured.

In the capital's Karrada neighborhood, a car bomb killed five people.

Security officials report several attacks in the northern city of Mosul. They say unidentified attackers shot and killed two Iraqi soldiers while two police officers were shot and killed in another part of the city. Officials say a civilian was shot and killed in a third incident.

And authorities say a roadside bomb killed three people and injured 30 in northern Baghdad's Shaab district.

Also Monday, Iraqi military officials said three Iraqi soldiers were killed in a roadside bombing northeast of Baghdad.

The violence comes as U.S. troops prepare to pull out of Iraqi cities by the end of this month.

Meanwhile, coalition forces say two suspected terrorists were arrested in a joint operation with Iraqi police Sunday in the city of Fadhiliyah. Coalition officials have identified one suspect as Walid Abbass, a commander linked to several violent acts in Dhi Qar Province, including assassination attempts on local officials.

Some information for this report was provided by AFP and Reuters.