A bus carrying pilgrims to the Iraqi city of Karbala overturned north of Baghdad on Saturday, killing 18 people, medical officials said.
Millions of believers converge on the city each year for the Shiite pilgrimage of Arbaeen, regarded as the largest annual public gathering in the world. Pilgrims come from various parts of Iraq as well as from Iran and the Gulf countries, with many making their way to Karbala on foot.
