More than 165 million people were sweltering on Friday under record temperatures along the US East Coast and Midwest, according to the US National Weather Service.

The weather service issued warnings that areas of the Midwest and East of the United States face “major” or “extreme” heat‑related health risks.

The heatwave is disrupting a busy weekend as US President Donald Trump hosts a celebration marking America’s 250th birthday and multiple World Cup matches taking place.