Authorities are investigating a double shooting that happened Sunday night in Columbia Heights.

According to the Anoka County Sheriff’s Office, multiple law enforcement agencies were called to Labelle Park around 8:37 p.m. Sunday on a report of shots fired. When they arrived at the scene, they found shell casings, but no victims or suspects.

Authorities then learned of a boy suffering from a gunshot wound at a nearby hospital and another victim, a man, who had been brought to the hospital by ambulance from a nearby home.

Both victims are believed to have been shot in Labelle Park, officials said.

The sheriff’s office has not released information on their condition or whether any arrests have been made. Authorities added that there are no known threats to the public.