Alec Baldwin published a lengthy defense of the “Rust” production signed by 25 members of the crew on Thursday, a day before ABC News is set to air a two-hour special about the on-set tragedy.

In the letter, the crew members sought to push back on claims that chaotic and unsafe conditions on set contributed to the death of Halyna Hutchins. Baldwin was preparing for a scene on Oct. 21 when he shot Hutchins with a live round from a Colt .45. Detectives continue to look into the circumstances, and have focused on potential lapses and an air of “complacency” on the production.

The crew members argued in the letter that the narrative of an unsafe set is false.

“Unfortunately, in the film industry, it is common to work on unprofessional or hectic productions to gain experience or credits,” they wrote. “Many of us have worked on those types of productions. ‘Rust’ was not one of them. ‘Rust’ was professional.”

They characterized some of the crew members who have spoken out against the production as “disgruntled.” They also stated that the letter was not “sanctioned or influenced” by the film’s producers.

“The descriptions of ‘Rust’ as a chaotic, dangerous and exploitative workplace are false and distract from what matters most: the memory of Halyna Hutchins, and the need to find modern alternatives to outdated industry firearm and safety practices.”

The letter was sent to the New Mexico Film Office and the International Alliance of Theatrical Stage Employees.

Lane Luper, a camera operator on “Rust,” has been among the most outspoken critics of the production. He led a group of seven workers who resigned on Oct. 20 in protest of working conditions on set. In a statement last week, Luper argued that the “production and its producers, including Baldwin, cut corners and endangered their entire crew by failing to follow industry safety rules.”

The “Rust” producers have also been sued twice, by the film’s gaffer and script supervisor, who allege that negligent hiring practices and poor supervision contributed to the shooting.

Baldwin gave an interview to ABC News last week, in which he denied ever hearing about any safety concerns prior to the shooting. ABC News is preparing a lengthier examination of the tragedy to air on Friday evening.

Update, Dec. 10: Luper’s attorney, Jacob Vigil, has issued a response to the crew members’ statement posted by Baldwin on Thursday.

“Although not every member of the ‘Rust’ crew shared the same experiences – most of the letter’s signatories worked in less physical, office, or off-set roles and were unaware of the serious safety violations on set – every one of them was put at risk by the producers, including Alec Baldwin, who cut corners, hired an unqualified armorer, and ignored the industry-wide safety protocols designed to keep the cast and crew safe,” Vigil said. “Lane and other members of the camera crew recognized the serious nature of the safety issues on set and reported their concerns to the production. They were ignored and they resigned as a result.”

He continued: “Any perception by the remaining crew that the ‘Rust’ set was safe ended with Halyna’s death. The crew of ‘Rust’ and all New Mexico film workers deserve to see those responsible for Halyna’s death held accountable and measures put in place to prevent tragedies like this in the future.”