An afternoon of fun in the sun went terribly wrong Friday afternoon when a 10-year-old boy, tubing with four friends in Reynolds Channel, fell into the water and then got his leg stuck in the propeller of the boat that was towing the tube, Nassau County police said.

The boy, whose name was not released, was rushed to a Far Rockaway hospital and is listed in serious condition, police said.

The operator of the boat, who is the father of one of the children who was aboard the tube, was not charged.

The accident occurred at about 2:20 p.m. when the victim fell off the tube in the waters off the Cedarhurst Yacht Club in Lawrence. The boy then swam toward the boat, a 27-foot Sea Ray Sundeck, which had been stopped in the water, police said.

advertisement | advertise on newsday

As the boy attempted to board the boat, his leg got stuck in the propeller, police said. The operator of the boat, informed by his son that the victim was stuck and was being dragged under, grabbed the boy's life vest and held his head above water, authorities said.

Witnesses to the accident assisted in the rescue attempt until Hempstead Town bay constables arrived and were able to free the victim's leg.

The Lawrence Fire Department's marine unit transported the boy to the foot of the Atlantic Beach Bridge, where he was then taken to the hospital by the Inwood Fire Department.

The boat was transported to the Nassau County Marine Bureau for further investigation.

CORRECTION: An earlier version of this story misstated the affiliation of the bay constables who assisted in the rescue.