A makeshift bomb exploded Friday in southeastern Afghanistan, killing seven Afghans, NATO said.
The bomb struck the victims' vehicle in Arghandab district of Zabul province.
"Our thoughts are with the families of the victims at this difficult time, said U.S. Air Force Col. Charles Toplikar, of NATO's International Security Assistance Force. "This is a senseless attack on innocent Afghan civilians using indiscriminate weapons."
Seven NATO troops died after attacks in Afghanistan on Sunday, the NATO-led International Security Assistance Force said.
Five troops died following an insurgent attack in eastern Afghanistan, ISAF said, though it did not provide details about the attack.
Another ISAF service member died following an improvised explosive device attack in southern Afghanistan, ISAF said Sunday, after earlier announcing the death of another servicemember in an IED attack in the southern part of the country.
Two coalition service members in Afghanistan were killed on Wednesday, NATO's International Security Assistance Force said.
One died after an improvised explosive device attack in the south and the other was killed after an insurgent attack in the north.
ISAF wouldn't disclose the nationalities and the precise locations of the incidents.
A government official in eastern Afghanistan was killed in an IED attack Friday, officials said.
NATO's International Security Assistance said the district governor of Dur Baba in Nangarhar province was among the three people killed when their vehicle struck an improvised explosive device.
The official is Khorshad Khan Khogianiwal.
A vehicle headed to a wedding party and a school bus carrying students hit insurgent-planted bombs in southwestern
Afghanistan on Wednesday, killing 22 people and wounding 20, authorities said.
The incidents, which occurred in different districts of Nimruz province,
are the latest in Afghanistan to result from improvised explosive devices -
regarded as the top killer of civilians in the war-weary nation.