A massive fire on Sunday ripped through Rio de Janeiro's treasured National Museum, one of Brazil's oldest, in what the nation's president said was a "tragic" loss of knowledge and heritage.
The majestic edifice stood engulfed in flames as plumes of smoke shot into the night sky, while firefighters battled to control the blaze that erupted around 2230 GMT.
Five hours later they had managed to smother much of the inferno that had torn through hundreds of rooms, but were still working to extinguish it completely, according to an AFP photographer at the scene.
The museum, located in the city's north near the Maracana football stadium, was closed to the public when the fire sparked from a yet unknown cause.
The fire "spread very quickly; there is a lot of inflammable material," a spokesperson for Rio's fire department told AFP, adding that there were no reports of victims so far.
The natural history and anthropology museum was founded in 1818 by King Joao VI and is considered a jewel of Brazilian culture, with more than 20 million valuable pieces to its name.
"This is a tragic day for Brazil," President Michel Temer said in a statement. "Two hundred years of work and research and knowledge are lost."
Brazil's minister of culture, Sergio Sa Leitao, tweeted that "there will be little or nothing left of the palace and the exhibits."
"The loss is irreparable," he said. "Culture is grieving. The country is grieving." A deputy director at the museum, Luiz Fernando Dias Duarte, voiced "profound discouragement and immense anger" as the treasured institution burned, accusing Brazilian authorities of a "lack of attention."
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