Meteorologists warn week ahead in US will have dangerous temps: 'Heat is not to be played with'

Temperatures are expected to rise significantly in the coming days. A prolonged period of hot weather is forecast to affect many areas.

Further details are available from meteorologists, who warn of a serious heat event. The National Weather Service has described the situation as significant and dangerous.

In many areas, temperatures will be much higher than usual, even at night, with some regions experiencing heat for an extended period, possibly until the end of the month.