These were people who dedicated their lives to saving others, and their loss is felt deeply across the Navajo Nation,” Buu Nygren, the Navajo Nation president, wrote in a statement.

A small medical transport plane crashed and caught fire Tuesday on the Navajo Nation in northern Arizona, killing four people, the tribe said in a statement.

Four people were killed when a medical transport plane crashed and caught fire in Arizona, authorities said. The Beechcraft 300 crashed Tuesday afternoon while landing at the Chinle Municipal Airport, in the Navajo Nation, according to the Federal Aviation Administration.