In a separate incident, a soldier was killed and his brother wounded when unidentified gunmen opened fire on their house in Sa' diyah, a source said.
Meanwhile, two young men were killed and as many injured in a motorcycle bomb explosion in the northeastern part of Baquba, provincial capital city of Diyala, some 65 km from Baghdad, the source said, adding that two more people were wounded in a bomb explosion near a house in the nearby town of Buhruz.
In Baghdad, gunmen using silenced weapons shot dead two brothers at their shop in a commercial street in the Shiite-dominated neighbourhood of Baiyaa in southern capital, a police source said.
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