Sky News:– At least four people have been killed and another two are missing after two sightseeing seaplanes collided in mid-air in southeast Alaska.
Ten other passengers have been taken to hospital following the incident on Monday near the town of Ketchikan.
Eleven people were inside a single-engine de Havilland Otter DHC-3 operated by Taquan Air when it went down as it returned from Misty Fjords National Monument.
Three people who died were among the five on board the second plane, a single-engine de Havilland DHC-2 Beaver, according to the US coastguard.
It is unclear which plane carried the fourth victim.
All passengers were from the cruise ship Royal Princess.