At least nine people were killed in a wave of shootings across the Iraqi capital Baghdad, officials say.
Dozens of people were also wounded by the drive-by attacks at checkpoints in the city.
At least seven attacks were reported and one roadside bomb targeting a military patrol killed two civilians.
There was also a series of bombings in the mainly Sunni town of Falluja, west of Baghdad, which killed four people including a police officer.
The drive-by shootings in Baghdad took place in a two-hour period in the early morning.
Most of those who died were police officers.
In Falluja, the house of a police officer was bombed and he and his wife were killed.
Two other civilians were killed in another bomb attack.
Official figures show that 328 people were killed in Iraq in April, slightly fewer than a year ago.
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