Abdullah Wardak, governor of the Afghan province of Logar was killed on Saturday when a bomb blew up his car near the capital Kabul, the interior ministry said, blaming the attack on the "enemies of Afghanistan".
"This morning his car hit a bomb on the side of the road near Paghman on outskirts of Kabul. The governor has been martyred," spokesman Zemarai Bashary said.
Wardak, a former cabinet minister, was a long opponent of the Taliban and is was the first provincial governor to be killed since the September 2006 assassination of the governor of eastern Paktia province, Hakim Taniwal.
However, the Logar police chief, Ghulam Mustafa, said Wardak he was struck by a suicide car bomb near his home in the city.
"He was targeted by a suicide bomber in which he, a driver and a police (guard) were martyred," Mustafa said.