KABUL, Afghanistan (CNN) -- A U.S. service member died of a noncombat-related injury in eastern Afghanistan on Saturday, officials said.
The service member was part of NATO's International Security Assistance Force. The incident is under investigation.
"Afghanistan continues to be a dangerous place and the loss of a service member is a significant loss to the families involved and our forces here," said Col. Wayne Shanks, an ISAF spokesman. "I extend my heartfelt condolences to the family and friends of this service member."
The NATO-led international alliance was formed under a mandate by the United Nations to support the reconstruction of Afghanistan. NATO took command in 2003.
The force comprises about 50,000 troops from 42 countries.