A charter plane with eight people on board crashed near a remote radar site in western Alaska, federal aviation officials said.

The flight, a Cessna 441, departed Anchorage and was headed to Cape Newenham, about 450 miles southwest, when it crashed near its destination around 12:15 p.m. Thursday, the Federal Aviation Administration said, according to preliminary information.

Clint Johnson, the National Transportation Safety Board’s Alaska region chief, said two pilots and six passengers were on board the charter flight operated by Security Aviation, according to the Associated Press.

The status of those on board was not immediately clear.

Johnson said the plane went down on land near the Cape Newenham Airport, an Air Force airstrip that provides access to the Long Range Radar Site, the AP reported.