All nine rescued passengers are in hospital and listed in fair or good condition, according to Marty West, a spokeswoman for PeaceHealth Ketchikan Medical Center.
Princess Cruises confirms to CityNews Vancouver both planes were carrying guests from Royal Princess, which is now sailing a seven-day Voyage of the Glaciers cruise that departed Vancouver on Saturday, May 11th for Anchorage.
The Federal Aviation Administration says it's not known what caused the planes to collide in mid-air near Ketchikan in southeast Alaska.
"A second float plane was also involved in an incident and was carrying four guests from Royal Princess on an independent tour".More news: Liverpool fall short of title despite Mane double against Wolves
The Beaver had 5 people aboard, and the Otter had 11 people aboard, the FAA said.
The Coast Guard said it had launched a helicopter crew and two boat crews from its Ketchikan station to search for the missing.
"We are deeply saddened to report this news and our thoughts and prayers are with those who lost their lives and the families of those impacted by today's accident", Princess Cruises said in a statement.
The Taquan Air flight was sold through Princess Cruises, the company said.
The Voyage of the Glaciers cruise was on a seven-day trip that departed Vancouver on May 11 and is scheduled to arrive in Anchorage on May 18, the company said.More news: Hamilton to Ferrari?! - Formula One's biggest driver moves
Cindy Cicchetti, a passenger aboard the Royal Princess, told AP the ship captain announced that two planes were in an accident Monday.
The two aircraft came down in the sea off the southeastern coast of Alaska, around 25-30 miles (40-48km) northeast of the city of Ketchikan. Princess says all five confirmed fatalities were on that flight, the cruise line said in a statement.
It is investigating, along with the National Transportation Safety Board.
Weather conditions included high overcast skies with 9 miles per hour winds out of the southeast.More news: Four disappointing scenarios for 2019 NBA Draft Lottery