BAGHDAD, Aug. 18 (Xinhua) -- Seven people were killed and five others injured Saturday in separate gunfire and bomb attacks in Iraq, the police said.
In central Iraq, gunmen stormed the house of a police traffic officer in Swaeb district in southwestern Baghdad, and shot him, his wife, his sister and his daughter dead, an Interior Ministry source told Xinhua on condition of anonymity.
The attackers robbed about 75, 000 U.S. dollars and fled the scene, the source said, adding that Iraqi security forces launched an investigation into the incident.
In Iraq's northern province of Nineveh, gunmen with assault rifles broke into a civilian house in al-Rashediyah area in the provincial capital city of Mosul, some 400 km north of Baghdad, killing two brothers and injuring their guest inside, a provincial police source anonymously told Xinhua.
In a separate incident, a woman was gunned down by gunmen near her house in Al-Methaq area, in eastern Mosul, the source said.
In Iraq's western province of Anbar, a roadside bomb hidden in a garbage container detonated near a police patrol in eastern the city of Fallujah, some 50 km west of Baghdad, wounding two policemen, a local police source told Xinhua on condition of anonymity.
In addition, police arrested a woman suicide bomber wearing an explosive vest in the provincial capital city of Ramadi, some 110 km west of Baghdad, the source said.
In Iraq's eastern province of Diyala, a roadside bomb went off in an area located just west of the provincial capital city of Baquba, some 65 km northeast of Baghdad, injuring a woman, a provincial police source anonymously told Xinhua.
Elsewhere, a farmer was injured in a shootout incident between gunmen and security force manned a checkpoint in Um al-Edam area, some 7 km west of Baquba, the source said.
Violence is still common in the Iraqi cities despite the dramatic decrease since its peak in 2006 and 2007 when the country was engulfed in sectarian killings.