PORTLAND, Ore. (KOIN) — The body of a young man was recovered from the Willamette River Monday night after he went missing while swimming earlier in the day, said Tualatin Valley Fire and Rescue.

TVF&R said friends of the 18-year-old called 911 around 6 p.m. Monday evening after he had gone underwater and didn’t resurface. He had been swimming in the middle of the river without a life vest near Rogers Landing, said TVF&R. The fire department’s water rescue team dropped a buoy where he was last seen and began searching the river in a grid pattern using thermal imaging cameras.

After more than an hour of searching on their rescue mission, they transitioned into recovery mode. A dive team from the Clackamas County Sheriff’s Office was also called out to assist.

Just before 9 p.m., rescuers recovered the body of the lost swimmer. TVF&R said he was found in about 20 feet of water downstream from Rogers Landing. His family was notified. Authorities identified him as Newberg resident Wesley Warmoth.

“Our hearts go out to the family of this young man.” said Sheriff Tim Svenson. “This is a tragic situation that unfortunately plays out all too often in Oregon rivers and lakes. We will keep this family in our thoughts.”

The Lake Oswego Fire Dive Rescue Team also assisted in the recovery effort.