Alec Baldwin Rust shooting: Police investigate how live rounds got on set

A revolver fired by Baldwin during a Rust rehearsal on October 21 killed cinematographer Halyna Hutchins

Alec Baldwin was told the revolver was “cold” and had no live rounds, investigators say. File picture: AP

Authorities have pursued new leads on possible sources of live ammunition involved in actor Alec Baldwin’s fatal shooting of a cinematographer on the New Mexico set of a western movie, as they searched the premises of an Albuquerque-based firearms and ammunition supplier.

The search took place after a provider of firearms and ammunition to the ill-fated movie production for Rust told investigators that he “may know” where live rounds came from, describing ammunition he received from a friend in the past that had been “reloaded” by assembly from parts.