Deadly wildfires sweep across US west coast

Unprecedented wildfires have forced half a million people to flee their homes in Oregon as unusually hot and dry weather fans flames across a number of western US states.

Washington and California have also been hard hit – all three states have reported casualties.

In San Francisco the fires have been making their presence felt, even from a distance.

As firefighters continue their battle across the west coast, meteorologists are warning that it is not yet even peak wildfire season.