Operator stated that he launched his vessel into the Yazoo River at the Vicksburg Waterfront Boat Ramp.  As he was going up the river, he felt something break and the tiller handle steering slung out of his hand.  He and his dog were thrown from the vessel.  He swam back towards the boat ramp. The boat sunk in the river.  He was picked up by another boater and returned to the ramp.  The assisting vessel did not witness the accident, only recovered him swimming in the water.
Yazoo River
Vicksburg                     