WARSAW, Ind. (AP) — A community in northern Indiana is mourning the deaths of two 17-year-old boys who drowned in a private pond over the weekend.

Kaleb Lampkin and Korbin Foster were recovered from the pond Saturday afternoon in Warsaw. Sgt. Chad Hill of the Kosciusko County Sheriff’s office says the teens were found near one another, about 10 to 15 feet off the shoreline.

An autopsy performed on both Lampkin and Foster determined that their deaths were accidental, Hill said in a statement released Monday morning, June 1. The police department is awaiting toxicology reports to determine causes of death, which could take several weeks.

Authorities were alerted early Saturday morning when an adult discovered the boys were missing after a sleepover celebrating Lampkin’s recent birthday. WNDU-TV reports that another teen who attended the party was taken to the hospital for a “potential drug inducement” when first responders arrived at the scene.

An investigation is ongoing.

Warsaw Community High School is providing counseling to students.