At least four people are dead after two floatplanes collided in flight Monday afternoon near Ketchikan, Alaska, according to a news release from the US Coast Guard.
The passengers on both planes were from the Royal Princess cruise ship, which is on a seven-day cruise.
The Coast Guard, which is leading the investigation, told CNN it is still looking for two people.
In an earlier statement to CNN, Princess Cruise Lines said five people were dead and "one guest still unknown."
The crash took place around 1 p.m. (5 p.m. ET) when a small floatplane -- an aircraft with pontoons or floats that allow it to land on water -- operated by Taquan Air was flying a shore excursion. The flight, sold through Princess Cruises, was returning from a tour of Alaska's Misty Fjords and was carrying 10 passengers and a pilot, the news release said.
The second plane involved was carrying four passengers on an independent tour, the release said.
