Following Alec Baldwin's shooting of cameraman Halyna Hutchins, a prosecutor has warned that criminal charges are 'in the cards.'

Last week, the 63-year-old actor accidentally killed 42-year-old Hutchins and injured director Joel Souza on the set of the Rust film in Santa Fe, New Mexico.

Baldwin, who had no idea the revolver had a live cartridge in it, was not detained or charged in connection with the incident, but cops questioned him along with several others.

In the probe, Santa Fe County district attorney Mary Carmack-Altwies told the New York Times, "we haven't ruled out anything."

'At this point, everything is on the table, even criminal proceedings,' she continued.

On Wednesday, Carmack-Altwies will be joined by Santa Fe County Sheriff Adan Mendoza for a much-anticipated press conference regarding the event.

She said that the inquiry focused on the type of bullet used in the gun that killed Hutchins and who loaded the weapon.

'There were a lot of bullets on this set, and we need to figure out what kind of bullets they were,' she explained.

She did say, though, that the inquiry could take months to complete.

'We're going to require weeks, if not months, of follow-up research to get to the point of charging,' she said.

The prosecutor also addressed the subject of the firearm being referred to as a "prop gun" in court documents.

It was an "antique-era appropriate gun," according to Carmack-Altwies.

The unintentional killing of Hutchins has horrified and saddened Hollywood, which is now under pressure to change the laws governing the use of guns on film and television sets.

According to court filings, in the moments leading up to the incident, an assistant director unwittingly handed Baldwin a loaded firearm and informed him it was safe to use.

Hutchins was taken to a neighboring hospital, where she was pronounced dead; director Souza, on the other hand, was released from the hospital hours later and is healing from his injuries.