Violence has surged in Iraq since last year, with the country weathering its deadliest bout of violence since it pulled back from the brink of civil war in 2008.
UN figures showed that last year, Iraq saw the highest death toll in attacks, with 8,868 people killed.
Today's attacks came as Iraq is heading toward a crucial election on April 30, its first vote since the 2011 US troop pullout.
More than 9,000 candidates will vie for 328 seats in parliament but there will be no balloting in parts of the western, Sunni-dominated Anbar province engulfed in clashes between security forces and al-Qaida-inspired militants.
Since December, the western Anbar province has seen fierce fighting between government troops and allied tribal militias on one side, and militants from the Islamic State of Iraq and the Levant, an al-Qaida spin-off group, on the other.
