A bomb scare overnight in Denver was sparked by a vintage piece of firefighting equipment.
The device was left in a box marked "explosives" outside a fire station on Tennyson Street in Denver on Thursday night.
Police evacuated the fire station and two nearby houses while investigators x-rayed the box. That's what one of the fire officials recognized the device.
It's a device that is thrown into a fire, detonates and helps extinguish the flames.
Investigators are now trying to determine who put the item outside the fire station.
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