(CNN) -- The Taliban says it launched a suicide attack in northern Afghanistan that left at at least nine people dead.
The incident occurred in Faryab province.
The Islamic Emirates of Afghanistan said the attacker struck a group of American and "internal forces" as they were walking toward a park,
Taliban spokesman Zabihullah Mujahid said foreign and internal security forces were killed and injured, he said.
Residents say that after the attack, "occupied forces" starting shooting at civilians, killing one person and injuring many, Mujahid said.
NATO's International Security Assistance Force said.three NATO-led service members were killed in an explosion.
The ISAF deaths occurred during a suicide bombing at a vegetable market in the city of Maymana in Faryab province, a military official said. The official did not want to be named because he was not authorized to speak to the media.
The provincial governor, Abdul Haq Shafaq, said six Afghans were killed and 20 others were wounded. He said three foreign troop members were wounded and that they were Americans.
Per policy, ISAF also does not release nationalities of service members
Journalist Ruhullah Khapalwak in Kabul contributed to this report.