Police are investigating a possible drowning that occurred in Kona Wednesday night.

The victim has been positively identified as 62-year-old Lori Trende-Landgraver of Portland, Ore.

Kona patrol officers and Hawaii Fire Department personnel responded to the Keauhou Pier after the 9:28 p.m. report of a possible drowning.

Investigating officers learned that Trende-Landgraver was participating in a guided manta ray snorkel tour. Following a safety brief, she was in the water for approximately five minutes before returning to the boat complaining of soreness to her arms.

After re-boarding the boat, Trende-Landgraver told the captain that she wasn’t feeling well and became unresponsive shortly afterwards. Crew members initiated CPR and the boat returned to Keauhou Harbor, where it was met by HFD medics.

Trende-Landgraver was taken to Kona Community Hospital where she was pronounced dead shortly after admittance.

Police have initiated a coroner’s inquest investigation to determine the exact cause of death. No foul play is suspected.

Anyone with information regarding this incident is asked to call the police nonemergency line at (808) 935-3311 or Crime Stoppers at (808) 961-8300.