Press TV reports.
The incident took place on Tuesday when a bomber attacked the vehicle carrying the foriegners to Kabul International Airport.
Afghan militant group Hezb-i-Islami claimed responsibility for the attack, saying the bomber, a woman, carried out the attack to avenge a US-made film insulting Islam.
Reports say a bomber blew up the minivan, killing nine foreign workers, their Afghan translator, and two other Afghans.
Eight Afghan workers have also been wounded in the bomb attack.
A spokesman for NATO's International Security Assistance Force (ISAF) confirmed the attack and said that “there are casualties."
“There are a lot of casualties. I cannot give you a number at this time," Kabul police chief Mohammad Ayoub Salangi said.
Security and rescue forces have been sent to the scene of the attack.
Violence in Afghanistan has been on the rise in recent months despite the presence of thousands of US-led foreign forces in the war-weary country.
The United States and its allies invaded Afghanistan in 2001 as part of Washington’s so-called war on terror.
The offensive removed the Taliban from power, but years into the invasion, insecurity continues to rise across the country.
As many as nine foreigners, mostly South Africans, have been killed in a bomb attack in Afghanistan’s capital, Kabul,