Baghdad, Iraq (CNN) -- Explosions in Iraq on Monday killed at least one person and wounded 27, officials said.
At least one police officer was killed and another was wounded when a roadside bomb struck a police patrol in southern Baghdad, an Interior Ministry official said.
Another 18 people were wounded by a double bombing in Salaheddin province.
The first bombing targeted a police convoy in the town of Shirqat, about 300 km north of Baghdad, wounding eight. After first responders arrived to the scene, a roadside bomb exploded, wounding 10 more people. Among the 18 wounded were seven police and two medics.
Elsewhere, a roadside bomb in southwestern Baghdad's Saydiya neighborhood targeted a police patrol and wounded three people, two of them civilians.
According to the official, at least five Shiite pilgrims were wounded by a roadside bomb that detonated in the northern outskirts of Baghdad on Monday evening.
The pilgrims were among tens of thousands of Shiites making their way, many of them on foot, to northern Baghdad's Kadhimiya Shrine as part of an annual pilgrimage to commemorate the martyrdom of Imam Musa al-Kadhim, one of the 12 imams of Shiite Islam.
CNN's Jomana Karadsheh contributed to this report.