Four civilians killed and twenty-nine others wounded in a series of car bombs explosions that occurred in different areas of Baghdad this morning.A police source said to the National Iraqi News Agency (Nina) that one civilian killed and nine others wounded when a car bomb went off near the University of Technology in eastern Baghdad.The source added that two civilians were killed and eight others wounded when another car bomb went off in Shaab district northeast of Baghdad, noting that a third car bomb exploded near Alamanah garage in central Baghdad led to the death of one civilian and wounding three others as well as another car bomb exploded in Zaafaraniyah district, southeast of Baghdad and led to the injury of nine people.