Ten people were killed when a floatplane crashed and burst into flames at an Alaska airport, US officials said.

The plane, operated by a local air-taxi company, crashed at the airport of the Alaska Kenai Peninsula town of Soldotna on Sunday.

No survivors were found, according to the Soldotna Police Department. National Transportation Safety Board investigator Clint Johnson said there were nine passengers and one pilot onboard.

The plane was a de Havilland DHC3 Otter, according to the US Federal Aviation Administration.

The crash happened at about 11:20am local time but it was initially unclear whether the plane was departing or landing at the time, the FAA said.

The FAA and the National Transportation Safety Board will investigate, officials said.

Victims' names were not released on Sunday. Police said they were still trying to identify the victims and locate family members.

The air-taxi company, Rediske Air, provides sightseeing charters and air-taxi services, according to a profile with the Better Business Bureau.

The mountainous Kenai Peninsula, south of Anchorage, is a popular destination for tourists, fishermen and hikers.

Source: Agencies