The Medari massacre was the mass murder of 22 Croatian Serb civilians on 1 May 1995 by members of the Croatian Army (HV) during Operation Flash. On 1 May 1995, according to Zagreb-based NGO Documenta and HHO, the Croatian Army killed 22 civilians, including 11 women and three children, in the village of Medari near Nova Gradiska in western Slavonia. Two sisters, Radmila and Mirjana Vukovic survived the massacre by chance because they went to high school in a nearby town in Bosnia and Herzegovina. Their father, mother and seven-year-old sister were killed that day. As of 2006, no criminal charges were filed in relation to the event.