Published: Apr 17, 2013 11:18 AM EDT
Updated: Apr 17, 2013 4:32 PM EDT

MIAMI- People are on edge after a suspicious device was found this morning in Key Biscayne.

A man and his son were walking along the beach when they found a canister, and on the side, a note that read, "If you find this device call police or the military."

After inspection, police buried the device in the sand then safely detonated it.