Aerial photo provided by Alberta Wildfire shows a firefighting plane dropping fire retardant on a wildfire in northern Alberta,royal satta matka Canada, on July 5, 2024. Sweltering conditions from a heat wave gripping Western Canada presented challenging conditions for firefighters in northern Alberta on July 9. Wildfire danger warnings spread across Alberta over the weekend with extreme temperatures and out-of-control fires in the northern areas of the province. (Alberta Wildfire/Handout via Xinhua)

Photo provided by Alberta Wildfire shows smoke rising from wildfires in northern Alberta, Canada, on July 2, 2024. Sweltering conditions from a heat wave gripping Western Canada presented challenging conditions for firefighters in northern Alberta on July 9. Wildfire danger warnings spread across Alberta over the weekend with extreme temperatures and out-of-control fires in the northern areas of the province. (Alberta Wildfire/Handout via Xinhua)

Aerial photo provided by Alberta Wildfire shows smoke rising from wildfires in northern Alberta, Canada, on July 2, 2024. Sweltering conditions from a heat wave gripping Western Canada presented challenging conditions for firefighters in northern Alberta on July 9. Wildfire danger warnings spread across Alberta over the weekend with extreme temperatures and out-of-control fires in the northern areas of the province. (Alberta Wildfire/Handout via Xinhua)

Aerial photo provided by Alberta Wildfire shows smoke rising from wildfires in northern Alberta, Canada, on July 2, 2024. Sweltering conditions from a heat wave gripping Western Canada presented challenging conditions for firefighters in northern Alberta on July 9. Wildfire danger warnings spread across Alberta over the weekend with extreme temperatures and out-of-control fires in the northern areas of the province. (Alberta Wildfire/Handout via Xinhua)

(责任编辑：综合)