The Winnebago County Sheriff's Office says two Neenah women, ages 20 and 26, were thrown from the Rinker Captiva.
The Post Crescent reports divers resumed searching for the women Sunday morning. But the search has transitioned from a rescue to a recovery operation.
The other two occupants of the Rinker Captiva were taken to a hospital, where one remained in serious condition and the other was treated and released. The two people in the Crownline E6XS were treated on shore by paramedics.