Hilaria Baldwin says her 'heart is with' Halyna Hutchins, the cinematographer her husband Alec shot on the set of 'Rust'

• Hilaria Baldwin has broken her silence on her husband Alec Baldwin's deadly prop gun shooting.
• She posted on Instagram that her "heart is with" Halyna Hutchins, who was killed in the shooting.

Hilaria Baldwin has broken her silence on her husband Alec Baldwin's deadly prop gun shooting on the set of his latest movie, saying that it's "impossible to express the shock and heartache of such a tragic accident."

She wrote in an Instagram post on Monday that her "heart is with" Halyna Hutchins, the cinematographer who was killed as a result of last Thursday's shooting on the set of "Rust" in New Mexico.

"My heart is with Halyna. Her husband. Her son. Their family and loved ones. And my Alec," Hilaria Baldwin wrote in all-caps.

"It's said, 'there are no words' because it's impossible to express the shock and heartache of such a tragic accident. Heartbreak. Loss. Support," she continued.

A post shared by Hilaria Thomas Baldwin (@hilariabaldwin)

Alec Baldwin is one of the stars and producers on the movie "Rust," an independently-produced Western in which he plays an outlaw who rescues his 13-year-old grandson who is sentenced to hang for manslaughter.

On October 21, according to an affidavit by the movie's director Joel Souza obtained by Insider, while Baldwin was practicing to draw his gun and point it at the camera, the gun fired, fatally killing Hutchins and injuring Souza.

Baldwin said in an affidavit that he was told by the movie's assistant director, Dave Halls, who handed him the gun, that it was a "cold gun," which is a term used in a movie that the gun is not loaded.

On the day of the shooting, Baldwin gave his first public comment via Twitter.

"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 tweeted.

"I'm fully cooperating with the police investigation to address how this tragedy occurred," he added.

Baldwin was "inconsolable" after the incident and has been "canceling other projects" and taking time off to "re-center himself," People reported, citing an unnamed source.

The investigation into Hutchins' death is ongoing. No one has been charged.

Hilaria Baldwin made headlines last winter after fans accused her of falsely claiming to be from Spain and using a Spanish accent. "I should have been more clear and I'm sorry," she said in February.