The Minneapolis, Minnesota police officer who shot and killed a 40-year-old Australian woman in an unexplained incident has been identified as Mohamed Noor, the precinct’s first Somali-American officer.

READ MORE: Aussie woman killed by police in US after dialing 911 to report disturbance

Justine Ruszczyk, also known as Justine Damond, was shot and killed in the alley behind her house Saturday evening, after she called police to report a possible assault. At one point, the officer in the passenger seat of the police cruiser shot her through the driver’s side window, according to local media reports. Damond was unarmed.

MPD Officer Who Shot Woman Identified As #MohamedNoor – WCCO | CBS Minnesota #justinedamondhttps://t.co/MW2jBEej6b — Tyler Kerr (@TylerFKerr) July 17, 2017

The Minneapolis Star-Tribune as well as the CBS affiliate WCCO-TV both identified the officer as Mohamed Noor, citing unnamed police sources.

Confirmed through police sources the MPD officer who killed Justine Damond is Mohamed Noor, who joined the force in March 2015. pic.twitter.com/85luKmVQse — Lou Raguse (@LouRaguse) July 17, 2017

Noor joined the MPD in March 2015, and was the first Somali police officer to patrol the 5th precinct in southwestern Minneapolis, according to a city newsletter. He has a degree in economics and business administration from Augsburg College, and worked in property management in Minneapolis and St. Louis, Missouri before joining the force.

Calling the shooting “clearly a tragic death,” Minneapolis Police Chief Janeé Harteau said that she has requested an external, independent and expedited investigation “to provide transparency and to answer as many questions as quickly as we can.”