Tens of thousands of people have been evacuated and hundreds of homes destroyed as wildfires rage in the U.S. state of Colorado.
Wildfires are burning in Boulder County, north of Denver, with officials saying casualties could be killed as the flames spread.
About 30,000 people in the cities of Louisville and Superior were told to leave their homes on Thursday.
Meanwhile, an emergency has been declared by Governor Jared Polis.
“The fire is not a question of resources,” he told a news conference. “This fire is a force of nature.”
“We hope the winds will calm down, the climate will change,” he added. “But for those who are directly affected, know that you are not standing alone.” Winds of up to 105 mph (169 kph) burn flames throughout the region following a historic drought.
And while previous fires in Colorado were in rural areas, these recent outbreaks occurred in suburban areas.
At least some erupted when power lines were blown off by strong winds, and soon they became the most destructive veld fires in modern history. Some 370 homes burst into flames west of the Superior and 210 were lost in the Old City area. of Superior, Boulder County Sheriff Joe Pelle said.
The shopping mall and hotel were also packed.
At least one first responder and six others were injured, Sheriff Pelle said, adding that many injured people may have died.
Another video taken outside a supermarket shows an amazing incident when a wind blew into a car park. Patrick Kilbride, 72, was at work at a hardware store when he heard an evacuation order, the Denver Post reported.
He hurried home but had time to gather a few items before the flames burned the property. Her dog and cat both died.
“It’s a strange feeling to have everything to make your life comfortable and empty,” he said.
Colorado has been experiencing severe drought in recent years. Climate change increases the risk of hot, dry weather, which can fuel wildfires.
The earth has already been warmed by about 1.2C since the start of the industrial era and temperatures will continue to rise unless governments around the world significantly reduce emissions.