"As of now, we can confirm Jeremy is in critical but stable condition with injuries suffered after experiencing a weather-related accident while plowing snow earlier today," the publicist, Samantha Mast, said. "His family is with him and he is receiving excellent care."
Renner, 51, was airlifted to a local hospital from the site of the incident in Reno, Nevada, the Washoe County Sheriff's Office said.
"At approximately 9 a.m. on January 1, 2023, the Washoe County Sheriff's Office responded to a traumatic injury in the area of Mt. Rose Highway in Reno, Nevada," the sheriff's office said in a statement.
Officials said they were investigating what had happened.
"Mr. Renner was the only involved party in the incident," the sheriff's office said.
Renner has played a starring role as Hawkeye in Marvel's "The Avengers" movies. He is the star of Marvel's "Hawkeye" series on Disney+.
He is a two-time acting Oscar nominee, scoring back-to-back nods for "The Hurt Locker" and "The Town." Renner's portrayal of a bomb disposal specialist in Iraq in 2008's "The Hurt Locker" helped turn him into a household name.
His acting credits also include roles in the films "Mission: Impossible - Rogue Nation" and "The Bourne Legacy."
ABC News and The Associated Press contributed to this report. The Walt Disney Co. is the parent company of Marvel Studios and this station.