Hundreds of firefighters are battling the Windy Fire to protect several groves of giant sequoias in the United States. The fire has already charred 25,000 acres (10,000 hectares), and a number of separate fires are converging on the California woodland that is home to the huge trees.

Russia's central regions are battling "extreme" wildfires fuelled by an unusual heatwave that comes after forest fires linked to climate change ravaged Siberia for most of the summer.

Officials in Spain said that, while wildfires could now be under control, the possibility of another flare-up was high as forests are very dry. In Greece, two new blazes were being tackled.

Flames surge into the air as firefighters try to contain the Dixie Fire near Milford, California. The wildfire in Northern California has grown to become the largest single wildfire in California state history.

Firefighters work to tackle wildfires on Italy's Adriatic coast and in the Sicily region after more than 800 flare-ups were recorded in the country in one weekend. EU data show this year's fire season has been significantly more destructive than most, with experts saying that climate change is increasing both the frequency and intensity of such blazes.

As wildfires sweep across the vast Siberian region of Yakutia, Yegor Zakharov and his team are racing to stop its smouldering forests from burning even more.

A total of 141 firefighters have been mobilised to contain a forest blaze at the base of Mount Penteli north of Athens. The fire service are backed by 10 helicopters and eight firefighting planes, but said strong winds were complicating operations.

Some residents have decided not to leave their homes despite the Dixie Fire that has been raging in the forests of northern California since mid-July. The fires have grown so big that it is generating its own weather system.

Firefighters rescue residents from deadly flooding in China's Henan province. The rainfall in the region was the heaviest since record-keeping began 60 years ago.

Firefighters rescue trapped passengers from a flooded subway station in the central Chinese city of Zhengzhou, where deadly torrential rains have wreaked havoc.

Crews from the Truckee Meadows Fire & Rescue use bulldozers to construct firelines to help stop the spread of an "aggressive" fire near Reno, Nevada. A combination of two blazes sparked by lightning near the California-Nevada border last week, the Beckwourth Complex fire has rapidly grown to some 90,000 acres. It is reportedly California’s largest fire so far this year and has prompted evacuations in both states.

Wildfires blazed through California, Arizona, and Oregon, fueled by winds and a lack of humidity. Two firefighters lost their lives during an aircraft rescue operation in Mohave County.