The death toll in the midair collision between two floatplanes carrying tourists from a cruise ship in Alaska rose to five — and one person remains unaccounted for, according to reports.

A total of 16 people were aboard the two planes – a de Havilland DHC-2 Beaver and a de Havilland Otter DHC-3 – when they collided over George Inlet near Ketchikan, the Alaska Daily News reported.

Fourteen of them were passengers on the megaship Royal Princess, which was on its inaugural Alaskan cruise that was scheduled to arrive in Anchorage on Saturday, according to a statement from Princess.

A US Coast Guard update Monday night said four people were confirmed dead and two were still missing, but Princess said five people were killed.

Ketchikan-based Taquan Air operated the Otter, with 10 passengers and the pilot, while the company flying the Beaver has not yet been identified.

“The US Coast Guard and local search and rescue teams have confirmed that nine of the guests and the pilot on the Taquan Air plane have been rescued and are receiving medical attention,” Taquan said in a statement.

The condition of one passenger was “unknown” by late Monday, the company said.

The Taquan Air plane was returning from a Misty Fjords tour, according to Princess, and the second plane was carrying four people from the ship on an independent tour when they collided about 1 p.m. Monday.

“It has also been confirmed there are five fatalities from the independent air tour, four Royal Princess guests and one pilot,” Princess Cruises said in a statement.

“Princess Cruises has activated members of its Care Team to provide assistance to the families impacted by today’s accident.”

Ten people were admitted to PeaceHealth Ketchikan Medical Center, hospital spokeswoman Mischa Chernick told the newspaper.

“We have one in critical condition, three in serious condition, and six in fair condition,” she said.

Chris John, an official with the Ketchikan Volunteer Rescue Squad, said it appeared the Beaver crashed on a steep rocky shoreline, ending up partially submerged and upside down.

The Otter crashed about a mile away and also ended up in the water, said Lt. Brian Dykens, a Coast Guard spokesman in Juneau.

Floatplanes have pontoons mounted under the fuselage so they can land on water.

Investigators with the National Transportation Safety Board from Anchorage and Washington, DC, were expected to arrive at the scene Tuesday.

It’s not the first time a major plane crash has occurred near the popular tourist destination.

In June 2015, a pilot and eight passengers died when a de Havilland Otter operated by Promech Air crashed into mountains about 24 miles from Ketchikan.

The NTSB later determined that pilot error and lack of a formal safety program were behind the accident.

With Post Wires