Transcript for 4 dead, 2 missing after midair collision over Alaska
We begin with tragedy in Alaska Depp told rose overnight after two sightseeing planes carrying cruise ship passengers collided in midair. It went down in southeastern Alaska junior catcher can't. The passengers were tourists on a royal princess cruise ship returning from a trip to a national park and now some of those passengers are missing. A desperate search is under way this morning after a popular Alaskan sightseeing to work turns deadly. At least four people were killed in two others are missing after two float planes like the ones seen here. Crashed during an excursion for passengers on a princess cruise ship. The popular tour which is run by 21 air takes small groups through the misty fjords national monument in catcher con near the southern most tip of Alaska. Skilled pilots impressed passengers by weaving through snowy mountain ranges in skimming the water of the remote destination. But according to the Coast Guard two planes involved in Monday's crash seemingly so rammed into each other midair. The Coast Guard immediately sent out to boat and helicopter to search for survivors. Ten of the sixteen people involved in the crash were taken to nearby hospitals while at least four could not be saved. Two others still haven't been found by rescuers this is not the first time a two Quan air tour is gone down. Last July 10 people were airlifted from a remote mountain range after their plane crashed into the rocky terrain. It is truly on forgetting. Very challenging. Dynamically changing it. According to the FAA the cause of this crash is still unknown but the NTSB is now joining. And the planes were not flying under air traffic control at the time of the crash tech wanna air has now suspended flights.
This transcript has been automatically generated and may not be 100% accurate.