A police spokesman said all roads to Karbala are closed and police are searching the city for another car bomb.
Every year millions of pilgrims visit the city of Karbala for Ashura commemorations, marking Hussein’s death in 680 AD. This year commemorations fell on November 25. Ashura commemorations are followed by a 40-day mourning period which also attracts thousands of pilgrims to Karbala. The majority of the Iraqi population are Shiite Muslims. Insurgents from the Sunni minority are regularly targeting Shiites in terror attacks.
On Tuesday three car bombs, targeting Shiite places of worship and a funeral in the Shuala district of Baghdad, killed 23 civilians.
Read More: 32 killed, some 100 wounded in Iraqi bomb attacks — RT
Residents inspect the site of a bomb attack in Hilla, 100 km (60 miles) south of Baghdad, November 29, 2012 (Reuters / Stringer Iraq)