Oppressive summer heat gripped Japan for the second straight day Saturday, killing two people and giving scores of others sunstroke as temperatures rose more than 20 degrees above normal.

In Tokyo, where temperatures hit 97 degrees, a 39-year-old man collapsed in the street and later died of heat exhaustion, the fire department said.Another man, believed to be in his fifties, was found dead in a park in the western city of Osaka, killed by sunstroke, police said.

The fatalities brought the two-day death toll from the heat wave to four. On Friday a 58-year-old man and a 90-year-old woman died.