Authorities in Oregon are trying to extinguish a fire burning in one of the world's tallest trees. It may lower the tree's standing in global height rankings.

Douglas-firs ( Pseudotsuga menziesii) are Oregon's most common trees, but the tree that's ablaze, known as the Doerner Fir, is special. Measuring 325 feet (99.1 meters) tall and with a diameter of 11.5 feet (3.5 m), it is one of the world's biggest coastal Douglas-fir trees, and one of the largest trees on Earth.