SANTA FE, N.M. — Alec Baldwin said Friday that the killing of a cinematographer who died after Baldwin fired a prop gun on a movie set was a “tragic accident,” as authorities investigated the shooting, which also wounded the director.

Halyna Hutchins, the cinematographer on the Western “Rust,” and director Joel Souza were shot Thursday in the desert on the outskirts of Santa Fe.

A spokesperson for Baldwin said a prop gun with blanks misfired. A spokesman for the Santa Fe County sheriff said detectives were investigating what type of projectile was discharged and how. No immediate charges were filed.

Baldwin was performing at the time of the shooting, the sheriff’s office said. It was unclear how many rounds were fired, and little was known about the weapon.

“There are no words to convey my shock and sadness regarding the tragic accident that took the life of Halyna Hutchins, a wife, mother and deeply admired colleague of ours. I’m fully cooperating with the police investigation,” Baldwin wrote on Twitter. “My heart is broken for her husband, their son, and all who knew and loved Halyna.”

Sheriff’s spokesman Juan Rios said detectives were at the set Friday morning gathering evidence and information. Baldwin is permitted to travel, he said.

“He’s a free man,” Rios said.

Images of the 63-year-old actor — known for his roles in “30 Rock” and “The Hunt for Red October” and his impression of former President Donald Trump on “Saturday Night Live” — showed him distraught outside the sheriff’s office Thursday.

Guns used in making movies are sometimes real weapons that can fire either bullets or blanks, which are gunpowder charges that produce a flash and a bang but no deadly projectile. However, even blanks can eject hot gases and paper or plastic wadding from the barrel that can be lethal at close range. That proved to be the case in the death of an actor in 1984.

In another on-set accident in 1993, actor Brandon Lee was killed after a bullet was left in a prop gun, and similar shootings have occurred involving stage weapons that were loaded with live rounds.

Gun safety protocol on sets in the United States has improved since then, said Steven Hall, a veteran director of photography in Britain. But he said one of the riskiest positions to be in is behind the camera because that person is in the line of fire in scenes where an actor appears to point a gun at the audience.

Hutchins, 42, was airlifted to a hospital, where she was pronounced dead. Souza, 48, who was wounded in the collarbone area, was taken by ambulance to a medical center.

Sheriff’s deputies responded about 2 p.m. to the movie set at the Bonanza Creek Ranch after 911 calls described a person being shot there, Rios said. The ranch has been used in dozens of films, including the recent Tom Hanks Western “News of the World.”

“This investigation remains open and active,” Rios said in a statement.

One of Hutchins’ final social media posts was a photo of the “Rust” actors standing together in solidarity with crew members. She belonged to the IATSE union that represents crew members. The union is to vote soon on a new contract with producers after threatening to strike in recent weeks over issues including long hours and on-set safety.

The Santa Fe New Mexican reported the 63-year-old Baldwin was seen Thursday outside the sheriff’s office in tears, but attempts to get comment from him were unsuccessful.

Actor Frances Fisher said Souza has been released from the hospital, according to Metro.

Production was halted on the film.

“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, a 2015 graduate of the American Film Institute, worked as director of photography on the 2020 action film “Archenemy,” starring Joe Manganiello. 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.”

“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, in a statement

Film colleague Manganiello called her “an incredible talent” and “a great person” on his Instagram account. He said he was lucky to have worked with Hutchins.

Baldwin teamed up as a producer previously with Souza on the 2019 film, “Crown Vic,” which starred Thomas Jane as a veteran Los Angeles police officer on a manhunt for two violent bank robbers. His first credited film, 2010’s “Hanna’s Gold,” was a treasure hunt adventure featuring Luke Perry.

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.

A Twitter account run by Lee's sister Shannon said: “Our hearts go out to the family of Halyna Hutchins and to Joel Souza and all involved in the incident on ‘Rust.’ No one should ever be killed by a gun on a film set. Period.”

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