At least six people were killed in torrential rains and flash floods that hit the Spanish resort island of Mallorca over night, emergency services said Wednesday.
Three of them were foreigners - a British couple and a Dutch woman.
A woman who had been in a vehicle with her two children died after she managed to push one of them, her 8-year-old daughter, to safety.
Diario de Mallorca reported that the bodies of an 81-year-old man and 83-year-old woman were among the first to be found on Tuesday.
"My solidarity and support goes out to the families and friends of victims and all those affected by these tragic floods", Prime Minister Pedro Sanchez said on Twitter. "Given the magnitude of what happened we are going to unleash all resources necessary to return their lives to their everydayness, but the most urgent thing right now is to find those people disappeared". Streets in towns near Malaga on the Costa del Sol experienced chest-high water levels.
Trees were torn down as floodwaters swept many cars and trucks into piles of metal and streets were buried under mounds of mud.
There are unconfirmed reports that two Britons are among the casualties as the floods hit the Sant Llorenc area early on Wednesday morning.More news: 'Huge changes needed to reduce global warming'
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A Foreign Office spokesman said: "We are supporting the family of two British people following their deaths in Spain, and will do all we can to assist them at this deeply hard time".
At least another 12 people were still missing after the downpours, local media reported.
Local television showed footage of beach umbrellas floating in the sea near S'Illot, one of the affected coastal villages. "We had to swim to try to survive".
Spanish tennis star Rafael Nadal joined in a minute of silence at his academy in the neighbouring town of Manacor. In all, more than 500 people helped with rescue and cleaning up operations, authorities said.
The flooding forced schools to close and displaced people to shelter in sports halls.
Some parts of the island received up to 9in (23cm) of rainfall in a matter of hours on Tuesday evening.
"I know how important Majorca is to Rafa and I have been in touch with him to see if I can help with anything", Federer said in a video message recorded in Shanghai where he is now competing.