Hawaii officials have released the names of 338 people still missing more than two weeks after the deadliest US wildfire in more than a century swept through the resort town of Lahaina.

Thousands of people fleeing a wildfire on the outskirts of Yellowknife, one of the largest cities in Canada's north, have crowded into the local airport and the road out of town.

Search teams have recovered the remains of at least 42 people killed by a devastating wildfire that largely incinerated the town of Paradise in northern California, making it the deadliest single wild-land blaze in state history, authorities said on Monday.

At least 70 people were killed and about 170 others wounded as a wildfire swept through woodlands and villages near the Greek capital of Athens, trapping families with children behind walls of smoke and flames as they tried to flee to the beach.