NATO says an American F-16 jet has crashed in eastern Afghanistan, killing the U.S. pilot.
NATO said the crash was under investigation, but added first reports indicated that there was no "insurgent activity" in the area at the time of the incident on April 4.
Earlier, an air strike by U.S.-led forces mistakenly killed four policemen and two brothers as their car was being searched at a checkpoint in eastern Afghanistan.
The strike occurred in the Deh Yak district of Ghazni province, according to district chief Fazel Ahmad Toolwak.
He said NATO troops were fighting Taliban militants about 10 kilometers away, but those killed in the strike were not involved in that battle.
A NATO spokesman said the international military coalition was looking into the report, adding it "takes all allegations of this type seriously."
Based on reporting by AP and Reuters