Makeshift submarine found in East River

Police held artist, Philip "Duke" Riley, and two other men, both from Rhode Island, for questioning. But there was no indication the trio meant any harm with the replica of the 1776 "Turtle submarine."

One of the Rhode Island men claimed he was descendant of David Bushnell, the inventor of the original one-man vessel that inspired the replica, police said.

The makeshift sub "is the creative craft of three adventuresome individuals," Police Commissioner Raymond Kelly said in a statement. "It does not pose any terrorist threat. ... We can best summarize today's incident as marine mischief."

Der.

Actually, the craft was in the Buttermilk Channel, a stone's throw from my old house.

Related: Duke Riley's website + more about The Turtle.