LAKEWOOD -- Investigators said a man and his teenage son apparently drowned while playing with a remote control boat at an Ocean County fishing pond.

But it's still not clear how Mark Volz and his 17-year-old son, Mark Jr., ended up in the water on Monday afternoon.

The Toms River residents were last seen operating the four- to five-foot boat around 4:30 p.m. at the edge of the pond here.

Nearly two hours later, a passer-by saw the boat bobbing in the water and noticed an empty pickup truck nearby, along with a fishing pole, boats, wallet and keys in the grass. The passer-by called the police, and the bodies were found a short time later.

Family members declined to comment on the accident.