Authorities in New Mexico and New York are working to obtain a cell phone belonging to actor Alex Baldwin, as police believe the phone could contain data relevant to the investigation of the fatal shooting on the set of Baldwin’s film “Rust.”

Baldwin, the lead actor and a producer on the film, was handling a prop gun on the Santa Fe set when it discharged and fatally shot the film’s cinematographer, Halyna Hutchins. The film’s director Joel Souza suffered non-fatal injuries when he was hit by the same bullet that killed Hutchins. Baldwin was reportedly told the prop gun was “cold” — meaning it did not contain any live rounds — when he was handed the weapon to prepare for a scene.

As CrimeOnline previously reported, Baldwin said in an interview with ABC News that he did not pull the gun’s trigger, despite believing it did not contain any real bullets, and that he did not initially realize Hutchins had been shot. He has denied responsibility for Hutchins’ death, and when asked in the ABC News interview if he felt guilt over it, he said no.

“I feel that someone is responsible for what happened, and I can’t say who that is. But I know it’s not me,” Baldwin said.

An affidavit obtained by Reuters shows that a detective with the Sante Fe County Sheriff department asked Baldwin to give his cell phone to investigators but the actor refused to do so voluntarily, saying police would have to obtain a warrant. Authorities in Santa Fe did issue a search warrant in mid-December, but as Reuters reports, investigators still do not have Baldwin’s phone.

As Reuters reports, the affidavit did not say that investigators were looking for anything specific on Baldwin’s cell phone, but that individuals connected to a possible criminal incident “often make and/or receive telephone calls and/or messages before, during and/or after the commission of crime(s). Such information, if it exists, may be material and relevant to this investigation.”

No charges have yet been filed in connection to Hutchins’ death.

According to Reuters, multiple law enforcement agencies in New Mexico and New York are now working to obtain the phone, with the Suffolk County Sheriff’s Office joining the effort. Baldwin has a home in Amagansett, New York; on Long Island.

It is unclear why Baldwin has not yet turned his phone over to investigators, three weeks after the warrant was issued.

Baldwin’s attorney did not respond to Reuters’ request for comment.

This is a developing story. CrimeOnline will provide further updates when more information is available.