NATO forces in Afghanistan say four international service members have been killed in an insurgent attack in the country's east.

The military coalition says the attack happened on Saturday. It did not provide further details.

Taliban spokesman Zabiullah Mujahid claimed responsibility for the attack in an email, saying that a suicide bomber attacked the troops in Kapisa province.

The majority of troops in Kapisa province are French, but there are also other nations with forces there, including the United States.