BAGHDAD (AFP) - Six people, including four soldiers, were killed in two separate car bombings in Iraq on Friday, attacks that left 21 others wounded, police officials told AFP. Two people died and 20 were hurt when a sticky bomb attached to a car exploded at a market in Dora, in southern Baghdad, at around 8.00 am (0500 GMT) as traders gathered at a wholesale market to buy fruit and vegetables. In the second incident, two army officers and two soldiers were killed when a stationary car exploded on a road 120 kilometres (75 miles) north of the restive northern city of Mosul, police said. A fifth soldier was wounded. The unrest came two days after twin truck bombs at the ministries of finance and foreign affairs left 95 people dead and around 600 wounded. Wednesday was the worst day of violence in Iraq in 18 months and prompted the government to arrest 11 senior security officers after it admitted that the trucks should not have been allowed to pass nearby checkpoints. Separately on Friday, a former Sunni Arab parliamentarian was wounded alongside his wife and son while driving near the disputed oil-rich city of Kirkuk, also north of Baghdad. Ahmad Saleh, who had been a member of the Kurdish list, and his family were attacked by unknown gunmen close to Rabiah, 45 kilometres (28 miles) south of Kirkuk, police said.