A firefighter has died while battling an enormous wildfire in northern California, authorities said late on Monday.
Temperatures on Thursday reached 35.1 degrees Celsius at Wisley, in Surrey, southern England, officially making it the hottest day of the year so far.
In the week to Sunday at least 65 people died of heat stroke while 22,647 people were hospitalised, the Fire and Disaster Management Agency said.
Two people were found dead in Romania as snow and sub-zero temperatures across much of Europe saw flights cancelled, road and rail transport disrupted and schools closed on Tuesday.
HMC's Dr Rafael Consunji explained that electrical burns and fires are more likely to happen with the incorrect use of electrical appliances for heating, while scald burns most often happen when bathing or cooking with hot liquids.