A score of civilians were killed and 30 others injured Tuesday by a bomb detonated next to their bus, an Afghan police officer told Efe.

The explosion occurred about 6:30 p.m. in the Obe district of the western province of Herat, said the spokesman for the regional police, Abdul Hamid Hamidi, adding that the casualties included women and children.

Homemade bombs, along with suicide attacks, are the Taliban's most frequently used methods to strike Afghan and international forces, although in practice they cause a high number of civilian casualties.

According to a U.N. report published in February, 2,759 civilians died in the war in Afghanistan in 2012 and 4,805 were wounded.

The report found that the greatest threat to civilians in the Asian country last year was makeshift bombs, which killed 868 civilians and wounded 1,663.

The Taliban are fighting to install an Islamic fundamentalist regime in Afghanistan like the one that ruled the country between 1996 and 2001, the year that it was toppled by the U.S invasion in the wake of the 9/11 terrorist attacks. EFE