Afghan security personnel gather at the site of a suicide bombing attack on the police headquarters in Gardez, capital of Paktia province, on June 18. Photograph: (Reuters)
Eight Afghan guards have been killed and two others wounded after gunmen attacked the American base at Bagram in Afghanistan.
Bagram is around 50 kilometres (31 miles) north of Kabul. The Bagram base contains the largest US contingent in the country.
"They were all local residents serving as guards at Bagram," said district governor Abdul Shakoor Quddusi, adding that they were riding back home in a convoy when attacked.
Nobody has claimed responsibility for the attack. The Taliban are setting up nationwide attacks to regain their Afghanistan stronghold, while ISIS is trying to make new inroads into the country.
The US is expected to increase military deployment in the country to help Afghan forces contain the Taliban's rising offensive. At present, there are 8,400 US troops and another 5,000 from NATO allies in Afghanistan, much less compared to the 100,000 troops six years ago.
Seven American soldiers were wounded in an insider attack by an Afghan soldier at Camp Shaheen near the northern city of Mazar-i-Sharif on Saturday.
Analysts say such attacks are expected to increase this year as US troops engage with the Afghan military to double the size of its special forces, considered to be effective in the fight against insurgents.
The Afghan conflict is the longest in American history, with US-led forces at war there since the Taliban regime was ousted in 2001.