Nickelodeon star Kianna Underwood has died after being struck in a hit-and-run accident. She was 33.

The Deputy Commissioner of Public Information confirmed to Page Six that police responded to a 911 call in the Brownsville neighborhood of Brooklyn, NY, at approximately 6:49 a.m. local time.

“A preliminary investigation determined a gray vehicle was traveling west bound and struck an unidentified female,” their statement read, confirming that she had “sustained severe trauma to the head and body.”

After emergency medical services arrived, “she was pronounced deceased on scene.”

The Deputy Commissioner also confirmed that the operator of the vehicle “did not remain on scene.”

No arrests have been made at this time and investigations remain ongoing.

Underwood — who was born in New York City — began acting at the age of 7. She got her big break in 2005 when she joined the cast of Nickelodeon’s “All That” in its 10th season.

She also spent a year on the first national tour of “Hairspray” as Little Inez and voiced Fuchsia in the Nick Jr. show “Little Bill.”

Following her short stint on TV, Underwood returned to New York City, where she was living a private life.

However, in 2023, a video surfaced on social media where she appeared to be struggling.

In the clip, several people chatted to her, who asked her to identify herself as she braided her hair.

“Kianna Underwood from ‘All That’ on Nickelodeon,” she told the camera as she confirmed a second time that she had been part of the show.

It’s unclear where she was living or if she was working.