At least four Iraqis have been killed and 16 others injured by a series of bomb attacks that have ripped across the capital city of Baghdad, police say.
The bombings targeted commuters who were on their way to work on Sunday morning, the Associated Press reported.
The first explosion was a roadside bomb next to a minibus heading downtown from Sadr City, Press TV reported.
The blast killed three people, including a police officer, and wounded nine others, medics said.
Police said a bystander was killed and seven others were injured after three more bombs planted a few meters away from each other in a downtown business district detonated simultaneously.
Iraq has been the scene of daily bombings and other types of attacks since the US-led invasion in 2003.
July became the deadliest month since 2008, according to figures provided by the Iraqi government, which put the overall death toll at 535, with civilians accounting for 396 of the victims.