Bombings and attacks hit more than a dozen Iraqi cities Monday, killing at least 60 people and wounding hundreds of others.

Iraqi officials say suicide bombings and other explosions devastated targets from the northern city of Kirkuk, to the capital, Baghdad, to the southern city of Kut.

Authorities say the worst violence was in Kut, where two explosions killed at least 37 people and wounded more than 60 others.

Also in the south, police say two car bombs killed at least three people in the city of Najaf. Another car bomb killed at least two people in Karbala.

In the north, authorities say two suicide bombers targeted an anti-terrorism unit in Tikrit, killing at least three people, including two police officers.

Elsewhere in the north, police say multiple bombings in Diyala province killed at least eight people, while two separate blasts in Kirkuk killed one person and wounded 12 others.

The attacks come a day after a coordinated series of explosions in Baghdad killed five Iraqi security force members. Another bombing Monday in the capital killed one person.

U.S. and Iraqi officials have expressed concern about the country's ability to handle security after U.S. forces withdraw at the end of the year.

Iraqi officials said early this month they would open talks with the United States about keeping a U.S. training mission in the country after the December pull-out.