NORTH HAVEN - The bomb quad was called to the East End after a contractor discovered blasting material along the shore in North Haven.
The contractor was putting boulders along the shore on Tuesday when he found the strange material between the rocks. He called Sag Harbor police who in turn phoned the bomb squad.
The material was detonated at Havens Beach.
Cops say the material may have been left over in the quarries where the rock initially came from.