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Europe heatwave: Red alerts issued in 16 Italian cities
Health warnings for Rome and elsewhere come as extreme weather scorches southern and central Europe.
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Red alerts have been issued for 16 cities across Italy as extreme heat continues to affect southern Europe.
The alerts, which indicate risks even for healthy people, apply to tourist hotspots including Rome, Florence, and Bologna for the coming days.
The heatwave has already lasted longer than usual and night-time temperatures have remained high.
More high temperatures are expected in Europe next week as another heatwave approaches.
Periods of intense heat occur within natural weather patterns, but globally they are becoming more frequent, more intense and are lasting longer due to global warming.
The Italian government has advised anyone in the areas covered by Saturday's red alerts to avoid direct sunlight between 11:00 and 18:00, and to take particular care of the elderly or vulnerable.
In Rome, tour guide Felicity Hinton, 59, told the BBC the soaring temperatures combined with overcrowding has made it "nightmarish" to navigate the city.
"It's always hot in Rome but this has just been consistently hot for a lot longer than normal," she said.
Meanwhile, Greece has hit temperatures of 40C (104F) or more in recent days. The Acropolis in Athens - the country's most popular tourist attraction - was closed during the hottest hours of Friday and Saturday to protect visitors.
The Red Cross has been offering water and first aid at the site, which sits on a rocky hilltop and offers little shade to visitors.
There are also fears of a greater risk of wildfires, especially in areas with high winds. Greece suffered major wildfires in 2021 in another exceptional heatwave.
High temperatures have also been reaching into central parts of Europe, with Germany and Poland among countries affected.
Czech Republic's meteorological office issued a warning that temperatures over the weekend could go above 38C, which is exceptionally high for the country.
Highs of up to 47C are expected across some parts of southern Spain, south-eastern Italy and possibly Greece later in the week. It is likely that some city records will be broken.
In the UK, however, heavy showers and gusty winds are expected in parts of England on Saturday.
Meteorologists said this was because the southern shift of the jet stream, which was fuelling the hot weather in Europe, was also drawing low-pressure systems into the UK - bringing unsettled and cooler weather.
The current heatwave in Europe has been named Cerberus by the Italian Meteorological Society, after the three-headed monster that features in Dante's Inferno.
Italian weather forecasters are warning that the next heatwave - dubbed Charon after the ferryman who delivered souls into the underworld in Greek mythology - could push temperatures back up above 40C next week.
Heatwaves are also being seen in parts of the US, China, North Africa and