Update: "The National Transportation Safety Board is sending a go-team from its Alaska Regional office to investigate a sightseeing plane that crashed near Ketchikan, Alaska.
A float-equipped DeHavilland DHC-3T (Turbine Otter) airplane crashed in an area of steep, mountainous terrain about 25 miles northeast of Ketchikan. According to local authorities, multiple fatalities have been reported," NTSB said in the statement.
A small plane carrying a pilot and eight passengers from a Holland America Line cruise ship was believed to have crashed in Ketchikan, Alaska, on Thursday, the CNN reports.
"The plane was on a shore excursion, sold through Holland America Line, when the accident happened about 20 miles northeast of Ketchikan, near Ella Lake," the report said..
"There is official no word yet on the condition of those on the plane, but a private helicopter pilot reported to seeing plane wreckage against a cliff near the location it was believed to have gone down, the Alaska Department of Public Safety said," CNN reported.