ANCHORAGE, Alaska (AP) – Alaska officials say no one survived a plane crash outside Girdwood.

Alaska State Troopers in a web posting say the crash happened Sunday near Eagle Glacier south of Anchorage. The crash was at about the 5,000-foot elevation on Goat Mountain.

Troopers say an Alaska National Guard helicopter responded, and the crew confirmed the crash and that there were no survivors.

However, the number of people on board the plane has not been confirmed. Troopers were attempting to reach the site Monday to assess terrain and come up with a recovery plan.

The National Transportation Safety Board tweeted Monday that it was investigating an accident Sunday in Girdwood involving a Piper PA-22.