UPDATED at 7:30 a.m. with details on recovery of man's body
A dive team recovered the body of a 20-year-old man Tuesday on the Cuivre River, where he died after two boats carrying groups of friends collided on Memorial Day.
Police haven't yet released the name of the man who died.
Authorities also arrested a 24-year-old man for boating while intoxicated.
The boats crashed about 7 p.m. Monday near Old Monroe, about 40 miles north of St. Louis. The crash site was in St. Charles County, near the Lincoln County line.
Trooper Dallas Thompson of the Missouri Highway Patrol said the patrol's dive team recovered the man's body about 12:20 p.m. Tuesday. The river there was about 25 feet deep, swollen from recent flooding, he said. Thompson said search crews used sonar equipment. The water was murky and strewn with debris, Thompson said.
Thompson said five people were in one boat. Two people, including the man who died, were in the other boat. They were all friends, Thompson said.
"They were playing around and the boats got too close and collided," Thompson said.
The man arrested on suspicion of boating while intoxicated was operating the boat with five people aboard. The person operating the boat with two people was not impaired, Thompson said.
After the crash, a witness saw a man who was not wearing a life jacket go into the water and not resurface, Thompson said. When police first arrived, no one involved in the boat crash was there. One person was in the hospital with minor injuries. The two boat operators eventually returned to the river to help point out where the crash happened so searchers could look for the man unaccounted for, Thompson said.
On Monday night, the search teams were in the water for hours, but they called off their search about 2 a.m. Tuesday before resuming efforts late Tuesday morning.
The man arrested on suspicion of boating while intoxicated was from the Old Monroe area. Thompson said troopers are still investigating the crash and will submit a report to prosecutors for consideration of charges in connection with the death.