BAGHDAD, June 25 (Xinhua) -- Three Iranian pilgrims were killed and 15 wounded Tuesday in a bomb attack in south of Iraqi capital Baghdad, police said.
The incident took place in the morning when a roadside bomb struck a bus carrying Iranian pilgrims, who were travelling from Baghdad to the holy Shiite city of Karbala, on a main road near the town of Iskandriyah, some 50 km south of Baghdad, an Interior Ministry source told Xinhua on condition of anonymity.
The attack came as hundreds of thousands of Shiite pilgrims have started to march to the holy city of Karbala to commemorate the birth of Imam Mahdi, the last of the 12 most revered Shiite's Imams.
Insurgent groups frequently carried out attacks against Shiite pilgrims who perform communal rituals, killing and wounding hundreds of them in attempts to provoke sectarian strife in the country.
On Monday, a series of attacks struck the Iraqi cities, including nine car bombs targeted mostly Shiite district in Baghdad, killing at least 35 people and wounding 138.