A judge will allow prosecutors to add an additional charge of intentional murder to the case of the former Minneapolis police officer who fatally shot Australian woman Justine Damond last year.

Judge Kathryn Quaintance ruled on Friday that prosecutors could amend their complaint against Mohamed Noor to add a charge of second-degree intentional murder.

Noor is already charged with third-degree murder and manslaughter in the July 2017 death of Damond.

Authorities say Noor shot Damond after she called 911 to report a possible sexual assault happening behind her home.

In their request to add the additional count, prosecutors said evidence showed Noor intended to kill Damond when he aimed and fired at her.

Noor’s attorney, Peter Wold, said the defence had been working on an objection to the prosecutors’ request but hadn’t filed it. He had no other comment.