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Firefighters of the Portuguese National Republican Guard work to stop a forest fire from reaching the village of Avelar, central Portugal, at sunrise Sunday, June 18 2017. A number of people have been killed in forest fires in central Portugal, many of them trapped in their cars as flames swept over a road Saturday evening. (AP Photo/Armando Franca)[/caption]

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Firefighters of the Portuguese National Republican Guard work to stop a forest fire from reaching the village of Avelar, central Portugal, at sunrise Sunday, June 18 2017. A number of people have been killed in forest fires in central Portugal, many of them trapped in their cars as flames swept over a road Saturday evening. (AP Photo/Armando Franca)[/caption]
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A man on the balcony of a house looks up at a forest fire raging on a hillside above the village of Avelar, central Portugal, before sunrise Sunday, June 18, 2017. A number of people have been killed in forest fires in central Portugal, many of them trapped in their cars as flames swept over a road Saturday evening. (AP Photo/Armando Franca)[/caption]