Wildfires fanned by strong winds have ripped through Californian wine country, killing at least 10 people, forcing some
20,000 residents to flee and destroying 1,500 homes and businesses.
Governor Jerry Brown declared a state of emergency for Northern California's wine-making Napa, Sonoma, and Yuba counties
as the blazes raged unchecked and engulfed the region in thick, billowing smoke that drifted into San Francisco and Oakland.
A state of emergency was also declared in Butte, Lake, Mendocino, Nevada and Orange counties.
Two hospitals were forced to evacuate, state officials said.
Californian authorities said at least seven people had died in the winemaking region of Sonoma, two in neighbouring Napa, and
one-person died in a blaze further north.
Thousands of firefighters battled wind gusts in excess of 80 kilometres per hour as 14 wildfires — several out of control — in eight northern California
counties burned through more than 23,000 hectares since the weekend, CalFire spokesman Daniel Berlant said.
About 1,500 homes and commercial buildings have been destroyed, Ken Pimlott, director of CalFire, told a news conference.
The blazes included the so-called Tubbs fire in Napa County, about 113 kilometres north of San Francisco in an area world-famous for its vineyards.
It had scorched about 10,117 hectares of land as of this morning, according to CalFire.
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