A Louisiana resident was killed when a tree fell on their house in the first death caused by Hurricane Ida

• Hurricane Ida, one of the most powerful storms to hit Louisiana, raged through the state on Sunday.
• The first death linked to the hurricane occurred when a tree fell on a house near Baton Rouge, authorities said.
• Over 1 million households were without power in Louisiana on Sunday.

Hurricane Ida caused its first death in the US when a tree fell on a house in Prairieville, a suburb of Baton Rouge, Louisiana's capital, officials said.

Late on Sunday, the Ascension Parish Sheriff's Office said on Facebook that a person had died because of Ida, which was classified as a Category 4 hurricane with winds of 150 mph.

"Shortly after 8:30 p.m. deputies received reports of a citizen possibly injured from a fallen tree at a residence off of Highway 621 in Prairieville," it said. "Deputies arrived on scene and confirmed that the victim is now deceased."

The office didn't share more details about the person. It has been regularly posting updates about Ida, including alerting followers to road closures and power outages.

-Blake Levine (@blake_levine) August 30, 2021

Over 1 million households were without power in Louisiana on Sunday. The hurricane knocked out power across New Orleans, with the only power coming from generators, authorities said.

Ida hit New Orleans 16 years to the day after Hurricane Katrina decimated the city. Katrina caused more than 1,800 deaths.

-NOLA Ready (@nolaready) August 30, 2021

Experts have predicted that Ida could damage 1 million homes along the Gulf Coast.

The storm is so powerful that it actually reversed the flow of the Mississippi River. Scott Perrien, a hydrologist with the US Geological Survey in Louisiana, told CNN that while there was "some flow reversal" of the river during Katrina, "it is extremely uncommon."

The water level rose by 7 feet on Sunday at the USGS gauge 20 miles south of New Orleans because of storm surge, Perrien said.

"The river is feeling the effects of the storm over a large area," Perrien told CNN. "All the way up to Baton Rouge the river has risen 1.5 feet in the past 12 hours as the surge pushes up the river. And the water level will likely rise more in the coming hours here in Baton Rouge."

Ida was classified as a Category 4 hurricane with winds of 150 mph, making it one of the most powerful storms to hit Louisiana along with Hurricane Laura in 2020 and the Last Island hurricane in 1856. Katrina was a Category 3 hurricane with winds of 125 mph.