More than 200 firefighters have been battling the flames as weather officials warned climate conditions were unlikely to bring quick relief.
Oregon is the hardest-hit state in the western US, where nearly 100 extreme wildfires are burning, even as forecasters say some weather relief is in sight.
Villages, small settlements and a summer camp have been evacuated as wildfire burns olive and pine trees in the country's south.
A fire at a resort hotel in the northeastern Chinese city of Harbin kills at least 19 people and injures another 18, say officials.
Some 3,400 firefighters on the ground and in helicopters and airplanes are battling the raging fire after it destroyed hundreds of structures and sent thousands of frantic residents racing from their homes.
Dozens of firefighters were on the scene trying to contain the huge blaze which broke out in the outer area of the Tsukiji market.
The new wildfire comes a day after France asked for Europe's help to tackle flames already raging in the tinder-dry south, including near the popular resort of Saint-Tropez.
Firefighters in Croatia and Montenegro have been struggling to contain wild fires along the Adriatic coast as their counterparts in Italy, France and Portugal have been battling major blazes.
The 15-storey Plasco building in Iran's capital collapsed as firefighters worked to douse flames engulfing its top floors. Local media are reporting that rescue services say at least 20 firefighters have been killed.
Firefighters battle brush fires in Southern California as heatwave worsens the conditions.
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