Video from inside the Mueseo Nacional in Rio de Janeiro shows the mass destruction the fire caused on Sunday.

The largest meteorite ever discovered in Brazil is one of the few artifacts to survive the fire.

Luiz Fernando Dias Duarte, the museum's deputy director, said that anything held in the main building was likely destroyed.

Forensic investigators and researchers awaited access Tuesday to the museum to find out how the blaze began and what remains within the building.

Video from inside the National Museum of Rio de Janeiro after a massive fire ripped through the building shows almost nothing survived the blaze on Sunday.

The museum held Latin America's largest collection of historical and scientific artifacts, and officials suggested that the damage could be catastrophic, with one official telling a Brazilian news outlet that as much as 90% of its collection could be destroyed.

A video posted to Twitter shows most of the artifacts had turned to rubble and ash. The largest meteorite ever discovered in Brazil is seen in the clip, one of the few artifacts to survive the fire.

The cause of the fire remains unknown.

But the museum, whose main building was once home to the royal family, had extensive paleontological, anthropological and biological specimens among its 20 million artifacts that are feared destroyed.

Photos of the fire: 16 PHOTOS Mueseo Nacional in Rio de Janeiro, Brazil ravaged by fire See Gallery Mueseo Nacional in Rio de Janeiro, Brazil ravaged by fire A fire burns at the National Museum of Brazil in Rio de Janeiro, Brazil September 2, 2018. REUTERS/Ricardo Moraes RIO DE JANEIRO, BRAZIL - SEPTEMBER 02: A fire burns at the National Museum of Brazil on September 2, 2018 in Rio de Janeiro, Brazil. The museum, which is tied to the Rio de Janeiro federal university and the Education Ministry, was founded in 1818 by King John VI of Portugal. It houses several landmark collections including Egyptian artefacts and the oldest human fossil found in Brazil. Its collection include more than 20 million items ranging from archaeological findings to historical memorabilia. (Photo by Buda Mendes/Getty Images) A fire burns at the National Museum of Brazil in Rio de Janeiro, Brazil September 2, 2018. REUTERS/Ricardo Moraes A policeman clears the area during a fire at the National Museum of Brazil in Rio de Janeiro, Brazil September 2, 2018. REUTERS/Ricardo Moraes A fire burns at the National Museum of Brazil in Rio de Janeiro, Brazil September 2, 2018. REUTERS/Ricardo Moraes A fire burns at the National Museum of Brazil in Rio de Janeiro, Brazil September 2, 2018. REUTERS/Ricardo Moraes People watch as a massive fire engulfs the National Museum in Rio de Janeiro, one of Brazil's oldest, on September 2, 2018. - The cause of the fire was not yet known, according to local media. (Photo by STR / AFP) (Photo credit should read STR/AFP/Getty Images) People cry a day after a massive fire ripped through Rio de Janeiro's treasured National Museum, one of Brazil's oldest, on September 3, 2018. - 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. (Photo by Carl DE SOUZA / AFP) (Photo credit should read CARL DE SOUZA/AFP/Getty Images) Firefighters inspect the interior of Rio de Janeiro's treasured National Museum, one of Brazil's oldest, on September 3, 2018 a day after a massive fire ripped through the building. - 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. (Photo by Carl DE SOUZA / AFP) (Photo credit should read CARL DE SOUZA/AFP/Getty Images) People react outside Rio de Janeiro's treasured National Museum, one of Brazil's oldest, on September 3, 2018 a day after a massive fire ripped through the building. - 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. (Photo by Carl DE SOUZA / AFP) (Photo credit should read CARL DE SOUZA/AFP/Getty Images) An aerial view of the National Museum of Brazil after a fire burnt it in Rio de Janeiro, Brazil September 3, 2018. REUTERS/Ricardo Moraes Joao Henrique de Orleans and Braganca, a descendant of the Brazilian Imperial family and the firstborn son of the prince Joao Maria of Orleans and Braganca is seen in front the National Museum of Brazil in Rio de Janeiro, Brazil September 3, 2018. REUTERS/Pilar Olivares An aerial view of the National Museum of Brazil after a fire burnt it in Rio de Janeiro, Brazil September 3, 2018. REUTERS/Ricardo Moraes An aerial view of the National Museum of Brazil after a fire burnt it in Rio de Janeiro, Brazil September 3, 2018. REUTERS/Ricardo Moraes An aerial view of the National Museum of Brazil after a fire burnt it in Rio de Janeiro, Brazil September 3, 2018. REUTERS/Ricardo Moraes RIO DE JANEIRO, BRAZIL - SEPTEMBER 02: A fire burns at the National Museum of Brazil on September 2, 2018 in Rio de Janeiro, Brazil. The museum, which is tied to the Rio de Janeiro federal university and the Education Ministry, was founded in 1818 by King John VI of Portugal. It houses several landmark collections including Egyptian artefacts and the oldest human fossil found in Brazil. Its collection include more than 20 million items ranging from archaeological findings to historical memorabilia. (Photo by Buda Mendes/Getty Images) Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

Some parts of the collection were held at others sites and thus spared.

Along with its many artifacts, the building’s walls, floors and ceilings were also destroyed in the fire.

Luiz Fernando Dias Duarte, the museum's deputy director, said that anything held in the main building was likely gone. Cristiana Serejo, a vice-director of the museum, told the G1 news portal that maybe around 10 percent of the collection had survived.

Cause of the fire remains unknown

Forensic investigators and researchers awaited access Tuesday to the museum to find out how the blaze began and what remains within the building.

After a fire tore through the museum Sunday, engineers were doing tests on the structure to make sure it wouldn't collapse.

Authorities had expressed concern on Monday that internal walls and parts of the roof were weak.

The cause of the fire was not known. Federal police will investigate since the museum was part of the Federal University of Rio de Janeiro.

But protesters, commentators and museum directors themselves said years of government neglect had left the museum so underfunded that its staff had turn to crowdfunding sites to open exhibitions.

In another example of struggling public services, firefighters initially struggled to contain it because the hydrants closest to the museum did not work.

Instead, trucks had to gather water from a nearby lake.

Roberto Leher, rector of the Federal University of Rio de Janeiro, said it was well known that the building was vulnerable to fire and in need of extensive repairs.

Renovations were planned for the museum

In fact, the institution had recently secured approval for nearly $5 million for a planned renovation, including an upgrade of the fire-prevention system, but the money had not yet been handed out.

On Monday, officials promised $2.4 million to shore up the building and promised to rebuild the museum.

"Those saying that the museum will be rebuilt are not telling the truth," said Luiz Philippe de Orleans e Braganca, an heir to Brazil's last emperor. "The building could be rebuilt, but the collection will never again be rebuilt.

"Two hundred years, workers, researchers, professors that dedicated in body and soul (to the museum) ... the work of their life burned due to the negligence of the Brazilian state."

For many in Brazil, the state of the 200-year-old natural history museum quickly became a metaphor for what they see as the gutting of Brazilian culture and life during years of corruption, economic collapse and poor governance.

Brazil has struggled to emerge from a two-year recession and seen its political and corporate elite jailed in Latin America's largest corruption investigation.

The country has been riven with deep political divisions following the impeachment and removal of former President Dilma Rousseff.

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SEE ALSO: A massive fire ripped through Brazil's 200-year old National Museum, likely destroying millions of rare artifacts