SANTA FE, N.M. (AP) - A prop firearm discharged by veteran actor Alec Baldwin, who is starring and producing a Western movie, killed his director of photography and injured the director Thursday at the movie set outside Santa Fe, the Santa Fe County Sheriff's Office said.

Sheriff's officials said Halyna Hutchins, director of photography for the movie “Rust,” and director Joel Souza were shot.

Hutchins, 42, was airlifted to University of New Mexico Hospital, where she was pronounced dead by medical personnel, authorities said.

Souza, 48, was taken by ambulance to Christus St. Vincent Regional Medical Center, where he's undergoing treatment for his injuries.

Production has been halted on the film.

A spokesperson for Baldwin said there was an accident on the set involving the misfire of a prop gun with blanks.

The Santa Fe New Mexican reported the 68-year-old Baldwin was seen Thursday outside the sheriff's office in tears, but attempts to get comment from him were unsuccessful.

The International Cinematographers Guild confirmed that the woman fatally shot was Hutchins, a cinematographer.

“The details are unclear at this moment, but we are working to learn more, and we support a full investigation into this tragic event,” guild president John Lindley and executive director Rebecca Rhine said in a statement.

Hutchins, 42, was director of photography on the 2020 action film “Archenemy,” starring Joe Manganiello. A 2015 graduate of the American Film Institute, she was named a “rising star” by American Cinematographer in 2019.

“I'm so sad about losing Halyna. And so infuriated that this could happen on a set,” said “Archenemy” director Adam Egypt Mortimer on Twitter. “She was a brilliant talent who was absolutely committed to art and to film.”

Deputies responded about 2 p.m. to the movie set at the Bonanza Creek Ranch after 911 calls came in of a person being shot on set, sheriff's spokesman Juan Rios said.

He said detectives were investigating how and what type of projectile was discharged.

“This investigation remains open and active,” Rios said in a statement. “No charges have been filed in regard to this incident. Witnesses continue to be interviewed by detectives.”

Filming for “Rust” was set to continue into early November, according to a news release from the New Mexico Film Office.

The movie is about a 13-year-old boy who is left to fend for himself and his younger brother following the death of their parents in 1880s Kansas, according to the Internet Movie Database website. The teen goes on the run with his long-estranged grandfather (played by Baldwin) after the boy is sentenced to hang for the accidental killing of a local rancher.

In 1993, Brandon Lee, 28, son of the late martial-arts star Bruce Lee, died after being hit by a .44-caliber slug while filming a death scene for the movie "The Crow" The gun was supposed to have fired a blank, but an autopsy turned up a bullet lodged near his spine.

In 1984, actor Jon-Erik Hexum died after shooting himself in the head with a prop gun blank while pretending to play Russian roulette with a .44 Magnum on the set of the television series "Cover Up."