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Alec Baldwin has a history of speaking out against gun rights activists.

Baldwin, 63, accidentally shot and killed cinematographer Halyna Hutchins Thursday in what he described as a "tragic accident" on the set of his film "Rust." The shooting also sent director Joel Souza to a hospital for emergency care. Souza has since been released.

Alec Baldwin has been an outspoken advocate for gun control. (Barbara Nitke/Peacock/NBCU Photo Bank via Getty Images)

Production for the film has been indefinitely halted.

In 2018, Baldwin joined a celebrity coalition, No Rifle Association (NoRA), whose goal was to shine a light on the National Rifle Association's alleged hold on the United States government.

ALEC BALDWINS ‘RUST’ MOVIE 911 CALL RELEASED

Halyna Hutchins was killed by a prop gun fired accidentally by actor Alec Baldwin on the set of ‘Rust.’ (Getty Images)

"We’re going to shine a bright light on what you and your organization do to America," the NoRA Initiative wrote in a 2018 letter to NRA Executive Vice President Wayne LaPierre (via Deadline). "We’re going to make sure the whole world sees your bloody hands. We’re coming for your money. We’re coming for your puppets. And we’re going to win."

The "It's Complicated" star has also gone after former NRA spokesperson Dana Loesch on social media. 

"I see that @DLoesch wants to ‘take back the truth,'" Baldwin tweeted in 2018.

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"And she doesn’t care how many dead bodies she has to step over in that pursuit. The Second Amendment is not a moral credit card that buys you all the guns you want. That law needs to be rethought."

Alec Baldwin pictured on set of ‘Rust.’ (Jim Weber/Santa Fe New Mexican)

Baldwin broke his silence on the death of Hutchins on social media Friday morning.

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"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," Baldwin wrote.

"I'm fully cooperating with the police investigation to address how this tragedy occurred, and I am in touch with her husband, offering my support to him and his family. My heart is broken for her husband, their son and all who knew and loved Halyna," he concluded.