Three members of Hezbollah's security forces were killed and five wounded Saturday in an explosion in suburban Beirut, Lebanon, officials said.
The Shiite holy city of Najaf made preparations Tuesday for commemorations of the Day of Ashura, marking the death of the grandson of the prophet Mohammed.
Separate overnight bombings near major shrines in Karbala killed at least three people and injured 15 others, the Iraqi Interior Ministry said Thursday.
Iraqi officials report a female suicide bomber, apparently targeting Shiite worshipers, killed at least 42 people and wounded 58 others in Karbala Monday.
The Iraqi government Thursday deployed 50,000 security personnel and banned public transportation around Karbala as Shiites celebrated the festival of Arbaeen.
A reported 6 million Iraqi pilgrims and about 60,000 Arab and foreign pilgrims have flocked to Karbala to observe Imam Hussein Arbaeen.
A series of rocket attacks left seven people dead Saturday in the Iraqi town of Tal Afar, where Shiite Muslims were observing the holy festival of Ashura.
A suicide car bomb exploded Saturday in Karbala, Iraq, killing at least 58 people and injuring at least 100 more.
Bombs in Iraq killed dozens of people Sunday, including Shiite pilgrims in Baghdad returning from a pilgrimage.
A suicide car bomber struck a busy commercial district in Baghdad on Monday, killing at least 26 people and injuring more than 50 others, police said.