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A picture taken on June 18, 2017 shows a forest in flames during a wildfire near the village of Mega Fundeira. Portugal declared three days of national mourning from June 18, 2017 after the most deadly forest fire in its recent history, raging through the centre of the country. The fire, which broke out June 17, 2017 in the Pedrogao Grande district, had killed at least 62 people and injured more than 50, according to the latest official update by Sunday afternoon. / AFP PHOTO / MIGUEL RIOPA (Photo credit should read MIGUEL RIOPA/AFP/Getty Images)

A picture taken on June 18, 2017 shows a forest in flames during a wildfire near the village of Mega Fundeira. 
Portugal declared three days of national mourning from June 18, 2017 after the most deadly forest fire in its recent history, raging through the centre of the country.
The fire, which broke out June 17, 2017 in the Pedrogao Grande district, had killed at least 62 people and injured more than 50, according to the latest official update by Sunday afternoon.   / AFP PHOTO / MIGUEL RIOPA        (Photo credit should read MIGUEL RIOPA/AFP/Getty Images)

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A picture taken on June 18, 2017 shows a forest in flames during a wildfire near the village of Mega Fundeira. Portugal declared three days of national mourning from June 18, 2017 after the most deadly forest fire in its recent history, raging through the centre of the country. The fire, which broke out June 17, 2017 in the Pedrogao Grande district, had killed at least 62 people and injured more than 50, according to the latest official update by Sunday afternoon. / AFP PHOTO / MIGUEL RIOPA (Photo credit should read MIGUEL RIOPA/AFP/Getty Images)

A picture taken on June 18, 2017 shows a forest in flames during a wildfire near the village of Mega Fundeira. 
Portugal declared three days of national mourning from June 18, 2017 after the most deadly forest fire in its recent history, raging through the centre of the country.
The fire, which broke out June 17, 2017 in the Pedrogao Grande district, had killed at least 62 people and injured more than 50, according to the latest official update by Sunday afternoon.   / AFP PHOTO / MIGUEL RIOPA        (Photo credit should read MIGUEL RIOPA/AFP/Getty Images)

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TOPSHOT - A picture taken on June 18, 2017 shows a forest in flames during a wildfire near the village of Mega Fundeira. Portugal declared three days of national mourning from June 18, 2017 after the most deadly forest fire in its recent history, raging through the centre of the country. The fire, which broke out June 17, 2017 in the Pedrogao Grande district, had killed at least 62 people and injured more than 50, according to the latest official update by Sunday afternoon. / AFP PHOTO / MIGUEL RIOPA (Photo credit should read MIGUEL RIOPA/AFP/Getty Images)

TOPSHOT - A picture taken on June 18, 2017 shows a forest in flames during a wildfire near the village of Mega Fundeira. 
Portugal declared three days of national mourning from June 18, 2017 after the most deadly forest fire in its recent history, raging through the centre of the country.
The fire, which broke out June 17, 2017 in the Pedrogao Grande district, had killed at least 62 people and injured more than 50, according to the latest official update by Sunday afternoon.   / AFP PHOTO / MIGUEL RIOPA        (Photo credit should read MIGUEL RIOPA/AFP/Getty Images)

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TOPSHOT - Picture released on March 12, 2017 by Aton Chile shows firefighters working to put out a forest fire in Valparaiso. Chilean authorities decreed red alert in Valparaiso and Vina del Mar for several forest fires. / AFP PHOTO / ATON CHILE / Raul ZAMORA / Chile OUT / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT 'AFP PHOTO / ATON CHILE / Raúl ZAMORA /HO ' - NO MARKETING - NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS (Photo credit should read RAUL ZAMORA/AFP/Getty Images)

TOPSHOT - Picture released on March 12, 2017 by Aton Chile shows firefighters working to put out a forest fire in Valparaiso.
Chilean authorities decreed red alert in Valparaiso and Vina del Mar for several forest fires. / AFP PHOTO / ATON CHILE / Raul ZAMORA / Chile OUT / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT 'AFP PHOTO / ATON CHILE / Raúl ZAMORA /HO ' - NO MARKETING - NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS

        (Photo credit should read RAUL ZAMORA/AFP/Getty Images)

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A picture taken on June 18, 2017 shows the village of Campelo after a wildfire, from Figueiro dos Vinhos. Portugal declared three days of national mourning from June 18, 2017 after the most deadly forest fire in its recent history, raging through the centre of the country. The fire, which broke out June 17, 2017 in the Pedrogao Grande district, had killed at least 62 people and injured more than 50, according to the latest official update by Sunday afternoon. / AFP PHOTO / PATRICIA DE MELO MOREIRA (Photo credit should read PATRICIA DE MELO MOREIRA/AFP/Getty Images)

A picture taken on June 18, 2017 shows the village of Campelo after a wildfire, from Figueiro dos Vinhos.
Portugal declared three days of national mourning from June 18, 2017 after the most deadly forest fire in its recent history, raging through the centre of the country.
The fire, which broke out June 17, 2017 in the Pedrogao Grande district, had killed at least 62 people and injured more than 50, according to the latest official update by Sunday afternoon.   / AFP PHOTO / PATRICIA DE MELO MOREIRA        (Photo credit should read PATRICIA DE MELO MOREIRA/AFP/Getty Images)