A planned fight between two “young individuals” escalated into a shooting at a public park in Winston-Salem, N.C., killing two and injuring several others, authorities said Monday.

Multiple people were shot, including two fatally, after a “planned fight” between two juveniles at a North Carolina park escalated and several people opened fire, authorities said.

The North Carolina State Bureau of Investigation called the incident a “mass shooting ” and said two people were dead.