At least thirty deaths are being blamed on the heat wave roasting the United States from the Midwest to the Atlantic Coast.
Ten of the deaths are in the Chicago area, while nine are in the Maryland area.
Among the record high temperatures on Saturday were Indianapolis, at 40 C, and Washington and St. Louis each at a sizzling 41 C.
Making the heat wave potentially more unbearable, an estimated 100,000 Americans are into their tenth day without electricity.
Their power was knocked out on June 29 by severe storms that hammered the region from Indiana to the mid-Atlantic States.
Worst hit was West Virginia, where up to 120,000 homes and business were disconnected
Meanwhile, an estimated 8,000 customers in the suburbs around Baltimore and Washington, D.C. were without power Saturday.