(Portland, OR) -- A man remains missing after a boat crash in the Columbia River. Witnesses say a power boat was passing Broughton ( BRAT-tun) Beach park yesterday when it made a sharp turn throwing both the operator and a passenger into the water. Several boaters went to help. The operator was rescued, but the passenger, who wasn't wearing a life jacket, went under water and didn't resurface. The Multnomah County Sheriff's Office dive team searched the river, but wasn't able to locate the man.