Portugal's weather agency says temperature records amid heatwave
Temperatures in Portugal are forecast to keep building on Friday, to around 45 degrees, and peaking at 47 degrees in some places on Saturday.
Meteorologists say temperatures are being driven higher by a hot air mass moving northward from Africa, which is also bringing dust from the Sahara Desert.
Emergency services have issued a red alert, placing extra services such as medical staff and firefighters on standby through Sunday.
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