ALBUQUERQUE — There were at least two accidental gun discharges on the set of an Alec Baldwin movie being filmed in New Mexico days before he fatally shot the cinematographer, according to three former members of the film’s crew.

16, the former crew members said, prompting a complaint to a supervisor about the safety practices on the set, which was outside Santa Fe.

The crew members, who asked not to be named out of fear that their future employment in the industry could be affected, were among several workers who quit, just hours before the fatal shooting, over complaints about unpaid work and working conditions on the production.

The disclosures, which were first reported by The Los Angeles Times, are focusing scrutiny on concerns over loosely followed protocols and labor strife between producers and crew members during the production of the movie, “Rust,” a low-budget film about a 19th-century accidental killing and its aftermath.

“Though we were not made aware of any official complaints concerning weapon or prop safety on set, we will be conducting an internal review of our procedures while production is shut down,” the movie’s production company, Rust Movie Productions LLC, said in the statement.

Joel Souza, the film’s director, who was injured in the shooting, said in a statement on Saturday that he was “gutted” by the loss of the cinematographer Halyna Hutchins, writing that she was “kind, vibrant, incredibly talented, fought for every inch and always pushed me to be better.”.