Deadly US Heatwave Threatens July Fourth

A perilous heatwave is gripping the central and eastern United States, with more than 173 million people under extreme heat alerts as temperatures soar into the high 90s Fahrenheit.

Authorities are issuing dire safety warnings ahead of the July Fourth weekend, as the heat dome is expected to persist.

The blistering conditions are also colliding with World Cup knockout matches being played across the region, raising concerns for players and fans alike.

Meteorologists attribute the persistent heat to an Omega blocking pattern pinning hot air over the continent.