Two planes carrying cruise ship tourists collide under unknown circumstances near Ketchikan town in Alaska.
Two seaplanes carrying cruise ship tourists have collided midair over southeastern Alaska, killing at least five and injuring 10, while one person is missing.
The accident occurred on Monday afternoon over waters about 40 kilometres northeast of Ketchikan town, said Petty Officer Jon-Paul Rios, a coastguard spokesperson.
The seaplanes collided under unknown circumstances, Allen Kenitzer, a spokesman of the Federal Aviation Administration (FAA) said in an email to the Associated Press news agency.
Weather conditions in the area on Monday included high overcast skies.
Seaplanes have pontoons mounted under the fuselage so they can land on water.
Local emergency responders worked with state and federal agencies and good Samaritan vessels to help rescue victims.