At least six people were killed and 15 wounded in Baghdad in three separate explosions on Tuesday, Iraqi security and medical sources said.
Three people were killed and five wounded in the capital's northern Shaab district when a motorcycle exploded, the sources said.
A second motorcycle exploded in the southwestern Bayaa district, killing two and wounding six.
An improvised explosive device went off in the eastern Baladiyat district, killing one person and wounding four.
It was not immediately clear who was behind the attacks.
The Islamic State group has carried out scores of bombings in Iraq and still has a presence in some parts of the country despite no longer controlling territory.
The officials spoke on condition of anonymity because they were not authorized to brief reporters.