Police say a device blew up in the middle of the street around 6:45 p.m.
It happened near the intersection of Nutley Avenue and Walnut Street.
Several residents called 911.
The bomb squad and Nutley Police responded to the scene.
Investigators said someone intentionally detonated the device, but they do not know who did it or why.
No one was hurt, and there was no property damage.
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