The search continues Sunday for four men thrown into the water Saturday after their 35-foot boat capsized on Folsom Lake, just northeast of Sacramento.
The accident happened Saturday and search teams did not find any of the boaters before sundown.
Sacramento sheriffs said the search effort is now a recovery operation. They do not think any of the four men are still alive.
A dive team and highway patrol helicopter are still scouring the lake for any sign of the boaters.
Investigators still do not know what caused their boat to overturn.