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.

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