A mass stabbing at a Sydney shopping mall resulted in the death of Dawn Singleton, a 25-year-old woman who had just bought her wedding dress.

Dawn Singleton was shopping for wedding makeup when she was killed; her fiance, NSW Police officer Ashley Wildey, discovered she was a victim upon responding to the incident.

The attack also claimed the lives of victims Yixuan Cheng, Pkiria Darchia, Faraz Tahir, Jade Young, and Ash Good, and injured Good's nine-month-old daughter, Harriet.

The local community is showing solidarity by laying flowers and offering support to those affected.

Emergency contact numbers for Lifeline and Beyond Blue have been provided for anyone in need of assistance following the tragedy.