PELLA, Iowa (AP) — Authorities in central Iowa say a 27-year-old Knoxville, Iowa, man has drowned at Lake Red Rock just west of Pella.

The Des Moines Register reports that Marion County Sheriff’s deputies were sent to the lake just after 6 p.m. Thursday for reports that a man had gone under the water and not resurfaced.

Officials say about 20 minutes later, Tyson Marshall was brought to shore, where medics sought to revive him. Marshall was taken to a Pella hospital, where he was pronounced dead.