One of Latin America’s most important museums was gutted by a fire Sunday night in a disaster that may have destroyed more than 20 million scientific and historical artifacts.

It remains unclear how many of the irreplaceable treasures housed at the National Museum of Rio de Janeiro were lost in the blaze, but authorities expect a catastrophic blow has been dealt to Brazil’s cultural nucleus. One museum director estimates as much as 90% of the inventory may have been razed.

The timing of the fire couldn’t have been worse. As firefighters battled the flames — reportedly using lake water because the nearest fire hydrants failed — museum officials revealed that the underfunded institution had been slated for a $5 million upgrade, including to its fire prevention system.

As investigators continue searching for clues as to what may have started the blaze, here’s what to know.

What was lost?
By Monday morning, museum directors began to survey the damage. Underneath the rubble of lumber, s..

Philippine President Rodrigo Duterte has voided the amnesty of one of his most outspoken critics, ordering police to arrest the Senator who has accused him of profiting from the illegal drugs trade and plotting to assassinate him.

Senator Antonio Trillanes IV said he would remain in the custody of the Senate President until his lawyers could petition against the measure he called “illegal and unconstitutional.”

“What Mr. Duterte wants to happen is to order a warrantless arrest which seems to declare a de facto martial law,” Trillanes said in a statement.

Duterte issued a proclamation Tuesday morning empowering security forces to “employ all lawful means to apprehend him.” At least 40 members of the police and military arrived at the Philippine Senate building in Manila shortly after, according to the local news site GMA News.

Trillanes, a retired naval officer, was granted amnesty by former president Benigno Aquino III over his role leading two mutinies in 2003 and 2007 against Aqu..

Japan announced evacuation warnings affecting more than 1 million people and canceled hundreds of flights Tuesday as Typhoon Jebi, the strongest storm to hit the nation in 25 years, battered the country’s west coast.

Jebi, which means “swallow” in Korean, collided with the country’s Shikoku island around noon, with heavy rain and gusting winds recorded at up to 208 km/h (129 mph), Reuters reports. A few hours later, the storm made a second landfall on Honshu, Japan’s main island, and headed north, according to national broadcaster NHK.

Around 3.9 in. of rain fell in Kyoto in the storm’s first hour, with as much as 20 in. expected by noon Wednesday; a few people have already been injured by heavy winds.

Prime Minister Shinzo Abe urged Japanese citizens “to take action to protect your lives, including preparing and evacuating early,” while Japan’s weather agency has issued warnings for landslides, flooding and high tides as well as lightning and tornadoes across western Japan, includi..