"Unknown gunmen planted three bombs around a house made of mud and reeds in the Taji area, causing it to completely collapse and killing a father, mother and five-year-old boy," an interior ministry official said.
The bombs exploded at about 4:00 am (0100 GMT), the official said, on condition of anonymity, adding that a two-year-old girl survived but was wounded and taken to hospital.
In the northern city of Kirkuk a carbomb blast killed the bodyguard of a local Kurdish security chief and wounded 11 other people, security spokesman Fahad Ali Rashid said.
The attack took place near the university of Kirkuk and also wounded three professors and a student who were attending a conference on violence-related issues.
And west of Kirkuk, a roadside bomb killed the son of a local leader of the Sahwa, an anti-Qaeda militia, near Nawafel village, security officials said. (*)
Editor: Kunto Wibisono
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