This story has been updated.

A woman trying to rescue her dog from a thermal hot spring at Yellowstone National Park “suffered significant thermal burns from her shoulders to feet” on Monday, according to park officials.

The 20-year-old Washington state woman and her father got out of their car near Maiden’s Grave Spring, close to the Firehole River, when the dog jumped out of the car and ran into the hot spring. The woman ran into the 200-degree water after the dog, a news release says.

Her father pulled her out and drove to West Yellowstone in Montana for help. It wasn’t clear who pulled the dog out. Initially, park rangers and responders from the Hebgen Basin Rural Fire District tended to her injuries, but the woman was ultimately taken to the burn center at Eastern Idaho Regional Medical Center.

While the initial statement said the woman’s father was going to take the dog to a veterinarian, an update Wednesday said the pet had died.

The release did not name the woman, but a GoFundMe campaign raising money for her medical bills and other expenses identified her as Laiha Slayton. The site says the fundraiser is organized by Slayton’s sister, Kamilla Slayton. She wrote that her sister had burns over 90 percent of her body, had undergone emergency surgery and was in a medically induced coma. Their father also burned his foot pulling his daughter out, she wrote.

In an update Wednesday, Slayton wrote that her sister’s burns were mostly second-degree, but that there were some third-degree burns as well.

“This means that our dad pulled her out insanely fast,” she wrote. “She’s incredibly lucky. Dad saved her life. Please send love and praise his way. She was in the scalding water for about 8 seconds.”

Slayton was in critical condition Wednesday night, according to the hospital. The GoFundMe effort has raised more than $21,000 out of a $45,000 goal.

In an Instagram post, Kamilla Slayton wrote that the dog who died was named Rusty. Another one of her sister’s dogs, Chevy, was “handling things well, all things considered,” Slayton wrote in an updated post.

The incident is under investigation, according to the news release. It warned about the dangers of thermal features — thin, fragile ground above scalding water — and urged visitors to keep their pets under control at all times. Pets are not allowed in thermal areas.

According to the statement, this is the second time someone has suffered “significant” injuries in a thermal area this year. A 19-year-old concessions employee from Rhode Island suffered second- and third-degree burns to 5 percent of her body at the Old Faithful geyser last month.

Last year, a 3-year-old was burned after running off a trail, slipping and falling into a “small thermal feature,” and another visitor fell and got burned while backing up and taking pictures at Old Faithful. A man died in 2016 after falling into a hot spring in Norris Geyser Basin. More than 20 people have died of burns suffered in Yellowstone’s hot springs, according to the park’s safety page.

“Hot springs have injured or killed more people in Yellowstone than any other natural feature,” the site says.