Fewer than three weeks before actor Alec Baldwin is due to go on trial in Santa Fe, New Mexico, prosecutors have said that he “engaged in horseplay with the revolver”, including firing a blank round at a crew member on the set of Rust before the tragic accident occurred.

Baldwin is facing involuntary manslaughter charges in the 2021 shooting death of cinematographer Halyna Hutchins.

In new court documents, prosecutors said they plan to bring new evidence to support their case that the 66-year-old actor and producer was reckless with firearms while filming on the set and displayed “erratic and aggressive behavior during the filming” that created potential safety concerns.

Prosecutors in the case, which is due to go to trial on 10 July, have previously alleged that to watch Baldwin’s conduct on the set of Rust “is to witness a man who has absolutely no control of his own emotions and absolutely no concern for how his conduct affects those around him”.

In the latest filing, special prosecutors Kari Morrissey and Erlinda Johnson allege that Baldwin pointed his gun and fired “a blank round at a crew member while using that crew member as a line of site as his perceived target”.