The International Security Assistance Force said the OH-58 Kiowa went down early Saturday for reasons that were still under investigation.
An official at ISAF Joint Command told Stars and Stripes it was not known if the Kiowa suffered a mechanical emergency or if pilot error was involved. Investigators said there was no indication it was shot down.
It was not known if the two-seat aircraft had a second crew member aboard and what the person's fate was.
The newspaper said the crash was the second fatal chopper crash in Kandahar. Five soldiers were killed Monday when a U.S. Army Black Hawk went down.