UPDATE as of 3:15 p.m. Neither brother was wearing a life vest, according to the Lakewood Police Department. The man who slipped under the water is 63 years old, and the man rescued on the boat is 65. They were about 200 yards off shore when the boat started taking on water. The 63-year-old swam about 75 yards before he went under the water.

UPDATE as of 1:52 p.m. The search has been called off for a man who has been beneath the surface of American Lake for an hour.

West Pierce Fire & Rescue spokeswoman Jenny Sharp said it is now a recovery operation.

Divers were called to the Lakewood park just before 1 p.m. after someone spotted a man screaming for help on a sinking boat.

Two brothers recently made repairs to their boat and took it for a test run. When the boat started smoking and taking on water, one of the brothers decided to swim to shore for help. Before he could, the man slipped and tumbled into the water, losing his grip on a floatation device he’d intended to take with him.

The other brother remained on the boat until help arrived. He was not injured.

The drowning victim has not been identified but officials said both brothers are in their 60s.

INITIAL POST: Divers are searching American Lake in Lakewood for a presumed drowning victim.

West Pierce Fire & Rescue was called to the lake just before 1 p.m. after an onlooker reported seeing a boat sinking.

Crews have not confirmed anybody was on board but divers are searching the water.

This is a developing story. We will post more information as it becomes available.