Six people were killed and 18 others wounded in separate violent attacks in central and eastern Iraq on Wednesday, police said. Three people were killed and seven wounded in a roadside bomb explosion at a vegetable wholesale market in Abu Ghraib area, some 25 km west of the Iraqi capital of Baghdad, a local police source told Xinhua on condition of anonymity. In a separate incident, gunmen attacked a police commando patrol in the city of Fallujah, some 50 km west of Baghdad, killing an officer and wounding two commandos, a local police source told Xinhua. In Baghdad, an anti-terrorism police officer was killed in a sticky bomb explosion in his car while he was driving in Adhamiyah district in northern Baghdad, a police officer anonymously told Xinhua. In Iraq\'s eastern province of Diyala, a soldier was killed and four were wounded when a roadside bomb detonated near their patrol near a village in northeast of the provincial capital city of Baquba, some 65 km northeast of Baghdad, a provincial police source told Xinhua. Meanwhile, three people were wounded when a roadside bomb ripped through a popular marketplace in the town of Udhaim, some 60 km north of Baquba, the source said. In addition, a policeman and a civilian were wounded in a roadside bomb explosion near a police patrol just outside Udhaim, the source added. Wednesday\'s violence came in the wake of deadly suicide bomb attacks on Tuesday night that targeted Iraqi security forces in central and northern Iraq which killed a total of 21 people, including senior security officers, and wounded some 46 others. Iraq is witnessing its worst eruption of violence in recent years. According to the UN Assistance Mission for Iraq, almost 6, 000 Iraqis were killed and over 14,000 others injured from January to September this year.