At least 42 people have died in a heatwave that has brought soaring¹ temperatures to a dozen US states from the Midwest to the East Coast.

美国中西部至东海岸几个州气温猛增，热浪造成至少42人死亡。

Crops shrivelled（皱缩的） and roads and railway lines buckled² in the heat.

Hundreds of records fell across the affected³ area on Friday and Saturday, but the heat was expected to ease slightly on Sunday.

Severe storms are expected to follow. Many homes in the region are still without power after storms a week ago.

Media reports say many of the deaths were of elderly people stuck in homes without air conditioning because of the outages（中断供应） .

Ten deaths in Chicago were blamed on the heat, and at least 10 each in the eastern states of Virginia and Maryland.

Three each died in Wisconsin, Ohio and Pennsylvania, and two in Tennessee.

A four-month-old girl died after being left in a car for "an extended period" outside her home in Greenfield, Indiana.

On Saturday temperatures reached 105F (41C) in Washington DC - just short of the hottest ever recorded in the city - and 107F (46C) in St Louis, Missouri, which also extended its record for consecutive⁴ days over 100F to 10.

"It's hotter than hell," tourist John Ghio, visiting the White House, told Reuters news agency.

"Too hot," said Chinese tourist Xiao Duan, 30, who was also visiting Washington.

"My father says it's like we're being burned by flames."

High temperatures have also hit parts of Canada, with temperatures on Friday breaking 11 daily records in Ontario.