Australian authorities say a fourth person has died in a week of massive bushfires on the nation’s east coast.

Australia Bushfires

The 58-year-old man’s body was found in northern New South Wales (NSW) on Thursday, days after a fire ripped through the region.

Crews are still battling over 120 fires in NSW and Queensland, but locals in Western Australia have now been warned of extremely dangerous conditions.

Police charged a 16-year-old boy with deliberately starting a damaging fire.

The alleged arson had destroyed 14 homes around the town of Yeppoon, 650km (400 miles) north of Brisbane, Queensland Police said.

Fire chiefs have warned the worst of the summer is “still ahead of us”, after expressing alarm at the scale and severity of the spring bushfires.

Prime Minister Scott Morrison has often avoided questions on whether climate change has contributed to the fires, in a response that has drawn wide criticism.

Who were the victims?

Since Friday, four people have died and at least 300 homes have been destroyed or damaged by fires in NSW.

Police said the latest victim was found in burnt-out bushland near Kempsey, 400km north of Sydney. He was yet to be identified.

The discovery follows the deaths of Vivian Chaplain, 69, Julie Fletcher, 63, and George Nole, whose age is unknown. They were found in separate locations in rural NSW.

What’s happening on the east coast?

Cooler conditions are bringing some assistance to firefighters, but many communities remain on alert.

In Queensland, crews are working to contain over 70 fires. Thousands of residents were warned to leave or defend their homes when blazes escalated on Wednesday, prompting emergency warnings.

“Even in these pretty benign conditions we’re seeing quite a lot of aggressive fire behaviour simply because it’s so dry,” said Rural Fire Service Deputy Commissioner Rob Rogers.

More than one million hectares have been burnt across the state since September. The greater Sydney area was issued with its first ever “catastrophic” fire warning on Tuesday, with officials expressing relief no lives were lost on that day.

Is this linked to climate change?

Scientists and experts warn that Australia’s fire season has grown longer and more intense due to climate change.

On Thursday, a coalition of former fire chiefs and other officials reiterated demands for the Australian government to address the issue of climate change to prevent further fires. Prime Minister Scott Morrison has declined to comment on climate change while the fires rage.