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A drought in Spain and Portugal is the worst since the 1940s. This is Portugal's Pereiras dam, 275km south of Lisbon.

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Several hundred kilometres to the east, Italy's mighty Po river has become a trickle at Ponte della Becca, near Pavia.

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Italian officials say the health of one million people is at risk. They said this week that 20,000 died in the 2003 heatwave.

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France has issued a hot weather alert. Temperatures in some southern regions are forecast to hit 38C (100F) this week.

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Temperatures in Zurich rose to 34C (93F) on Tuesday. These boys dived into Lake Zurich from a bridge, to cool off.

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Many Spanish reservoirs are at 20% of normal levels. This one has one month's supply left for the 60,000 people of Huesca.

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The nearby Mediano reservoir is so dry, that this church, normally under water, is now fully visible.