A bomb planted inside a mosque microphone killed the governor of Afghanistan's eastern Logar province Tuesday.

Arsala Jamal was delivering a speech to worshipers to mark the Muslim holiday of Eid al-Adha.

Jamal, 47, was a close confidant of President Hamid Karzai and served as his campaign manager during the 2009 presidential elections.

No one claimed responsibility, but the Taliban have been increasingly targeting Afghan officials and soldiers, and U.S. and NATO forces.