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A major forest fire is threatening the Chilean coastal city of Valparaiso, prompting authorities to declare a state of emergency and evacuate about 4,500 people from their homes.

The fire began at an illegal garbage dump, officials said, and spread because of high winds. The Associated Press quoted Deputy Interior Secretary Mahmud Aleuy as saying another 10,000 people might need to be moved from the city, which was named a World Heritage Site by UNESCO in 2003.

The city, home to Chile's National Congress, was hit by a forest fire last April that killed 15 people.

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