(AKI) - At least three people were killed and 19 others were injured in two separate explosions in the Iraqi capital Baghdad on Friday, an unnamed police source told the Voices of Iraq news agency. Another bomb exploded in the al-Mansour district of western Baghdad injuring four soldiers, VOI said. "An improvised explosive device went off near a police checkpoint in the Steen street in al-Doura region in southern Baghdad, killing three people and injuring 15, including three policemen," an unnamed police source told VOI.