Khost(Afghanistan) (Agencies): In the latest in a string of militant attacks targeting government officials, unknown gunmen shot dead a district Governor in eastern Afghanistan on Monday, police said.

Sayed Mohammad, the district chief in Khost province's Baak district was gunned down while driving to work, Provincial Police Chief Abdul Hakim Is'haqzai said.

"Sayed Mohammad was going to his office when he came under attack. Some armed men opened fire at him and killed on the spot," the police commander said.

There was no claim of responsibility for the murder, but the Taliban, the biggest insurgent group waging war in Afghanistan, have been responsible for most of such incidents.

Ousted from power in late 2001 in a US-led invasion, the Taliban lately have ramped up an assassination campaign against officials, their relatives or anyone linked to the Western-backed government.

Most assassinations have been recorded in the southern province of Kandahar, one of the main militant strongholds.