Hartford, IL (KSDK) - Search and rescue officials now say the two men, missing after a fishing boat capsized on the Mississippi River Saturday, are friends who are ages 49 and 60. Hartford Fire Chief David Owens II said Sunday the men are from the Bellefontaine Neighbors/north St. Louis area.

One of them is the stepfather of the 10-year-old boy found floating down the river about 1:30 Saturday. He was rescued by a passing barge crew.

Owens says the families of the missing men have declined to have their names released.

Several area departments helped search the banks of the river Sunday, and the river itself.

Chief Owens said, "The Illinois Dept of Conservation has brought 3 boats down with sonar. So currently we have 3 boats on the river with sonar sweeping the shoreline."

Owens says they believe the boy was in the water for 10-15 minutes Saturday. Officials believe the three got on the river at a public launch site at the Alton locks and dam.

Assistant Fire Chief Bill Owens said the boy was wearing a life jacket.

"That we know for sure, yes," he said. "The boy was wearing a life jacket. The dock workers took it off of him when he was rescued; that's how we know for sure he was wearing one."

What about the missing adults?

Assistant Chief Owens said, "We have not had positive confirmation that they were not, but life vests were found. That means they may have had life vests in the boat. Or, if they had an exact number, that means they may not have been wearing them. So since we have not located any of the victims we cannot say 100% for sure."

Chief David Owens says the boy was released to his mother yesterday. Owens said the child was in Hartford Saturday night, and is said to be in good condition.