NEW YORK — Police say the military-grade explosives found buried at a historic New York City cemetery on Tuesday are more than 13 years old.
NYPD spokesman Paul Browne said that the explosives did not have an identifying piece that all military C-4 were required to have after 1997.
It's still unclear who placed the plastic bag of explosives at the foot of a tombstone in New York City Marble Cemetery on Manhattan's Lower East Side.
A caretaker who was gardening dug up the bag in 2009, didn't realize what it was and left it. It remained until a volunteer saw it and called police Monday.
The discovery caused a bomb scare and shut down the area until police determined it couldn't detonate.