NATO's command in Afghanistan is investigating a military operation in a northern province that it says led to the "inadvertent" deaths of two people.
The incident, which took place Thursday in Faryab province, is among several skirmishes that have resulted in the deaths of apparent non-combatants during warfare, a controversial and much-derided occurrence in Afghanistan.
Two people were slain in separate explosions in Afghanistan, and an airstrike killed three militants, authorities said on Thursday.
In Kunduz city, a suicide attacker Thursday killed a police officer and wounded five people, including three children, the Kunduz provincial governor's spokesman said.
The International Committee of the Red Cross says the situation in Afghanistan has deteriorated to its worst point for aid organizations. CNN's Arwa Damon has the story.
A police officer was killed and five others were wounded during a suicide attack in northern Kunduz province in Afghanistan, a local official said.
"The suicide attacker detonated himself in the Chowk area of Kunduz city at 8 in the morning" said Mahbibullah Saidi, a spokesman for the provincial governor.
Hamdullah Danishi, acting governor of the province, confirmed the suicide attack and said that the suicide attacker wanted to target a police checkpoint.
Three children were among those injured, officials said.