Alec Baldwin was drawing a revolver across his body and pointing it at a camera during rehearsal on the set of 'Rust' when the weapon fired and struck the cinematographer in the chest, according to an affidavit released yesterday.

The affidavit provided additional details about Thursday's accidental shooting in New Mexico that killed 42-year-old Halyna Hutchins and wounded director Joel Souza.

Mr Baldwin had been handed the prop gun and was told it was unloaded, authorities in Santa Fe have said in court documents.

"Joel stated that they had Alec sitting in a pew in a church building setting, and he was practicing a cross draw. Joel said he was looking over the shoulder of (Hutchins), when he heard what sounded like a whip and then loud pop," the affidavit read.

Hutchins was shot in the chest area, the document said.

Halyna Hutchins

A distraught Baldwin, 63, was photographed on Saturday outside a hotel in Santa Fe embracing and talking with Matt Hutchins, the husband of Halyna Hutchins, and their nine-year-old son.

In a statement read to a candlelight vigil on Saturday, Mr Hutchins called his wife's death "an enormous loss".

No one has been charged in the fatal incident during a rehearsal at the Bonanza Creek Ranch outside Santa Fe as the sheriff's office continues its investigation.

Multiple media and social media reports have raised concerns about safety protocols on the set of the low-budget movie.

According to the Los Angeles Times, more than a week ago Mr Baldwin's stunt double accidentally fired two rounds from a prop firearm after being told it was 'cold', an industry term meaning a weapon is not loaded with ammunition, including blanks.

Rust Movie Productions said last week that although they "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".

According to court documents, the prop gun was handed to Mr Baldwin by the film's assistant director, Dave Halls, who has more than 20 years' experience in the business.

Also involved in the sheriff's probe is the movie's chief armourer, Hannah Gutierrez.