(KUNA) -- Six Iraqis were killed and 20 others were injured Monday during several attacks in Baghdad and Dayali Monday, a police source said. The source in press remarks that six civilians were injured after a booby-trapped car exploded near the southern gate of Al-Mustansirya University. The explosion caused damages to nearby properties, added the source.Meanwhile, a statement by the joint Iraqi police and army forces in Dayali province said that four Iraqis were killed and seven injured due to a road-side bomb explosion. In another incident, road-side bomb targeting a police car patrol in Khan bani Saad town near Ba'akoba in northern Iraq. An Iraqi joint forces source told KUNA that the explosion caused the death of two Iraqi and the injury of seven others.