Six security contractors beheaded in Afghanistan

Afghan villagers discovered on Sunday the beheaded bodies of six government contractors in the country's insurgency-racked south, the apparent victims of Taliban fighters who regularly target state projects, officials said.

It was the latest discovery in a bloody few months across the country.

Also on Sunday, the death toll from a suicide vehicle bomb attack on the site of a key national council in the capital Kabul had risen to 12, officials said, while NATO said an international service member was killed by a roadside bomb.

The Taliban took credit for the Saturday blast outside the huge tent where an assembly is scheduled to be held later this week. Thousands of prominent Afghans are scheduled to meet to debate a contentious security agreement with the United States.

The suicide bomber detonated his explosive-laden vehicle after being spotted by Afghan security personnel guarding the site, said Interior Ministry spokesman Sediq Sediqqi. He said three of the 12 dead were members of Afghanistan's National Security Force and the rest were civilians.

The Taliban gave the bomber's name as Saeed Kabuli, but provided few other details.

Hours before the blast, President Hamid Karzai announced that U.S. and Afghan negotiators had completed a final draft of the Bilateral Security Agreement to be presented to the gathering for debate. If approved, it would allow U.S. troops to stay in Afghanistan after the final withdrawal of international combat forces in 2014.

NATO did not announce the nationality of the service member killed in the south, but most troops serving in southern Afghanistan are from Britain and the United States.

So far this year 139 NATO service members have been killed in Afghanistan, according to Associated Press figures, compared to 394 troops of the NATO-led coalition killed in 2012.

Southern Afghanistan has been home to a stubborn Taliban insurgency. That’s where police said they recovered the decapitated bodies of six government contractors on Sunday.

Kandahar police spokesman Ahmed Durrani said villagers found the bodies. He said the men were involved in building police compounds and checkpoints in Kandahar, the birthplace of the Taliban.

Police sources told Al Jazeera that the contractors were traveling in a car from Arghastan to Kandahar, when their vehicle was stopped by members of the Taliban.

Al Jazeera and The Associated Press