PHILADELPHIA (CBS) – Members of the Philadelphia Bomb Squad defused what appeared to be a homemade explosive Monday night in Queen Village.

Police say PGW workers and the Philadelphia Fire Department responded to a report of a smell of gas in the 700 block of S. 4th Street around 9 p.m.

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According to police, they found a gallon container filled with what smelled like gas hooked to a timer and exposed wires inside a property under construction. The timer was set to go off at 11 p.m.

“Once inside the location they discovered a milk container, a gallon milk container, containing a liquid they thought could be possibly flammable. It had wires running into it, the wires ran into a timer plugged into the wall,” said Captain Pat Kelly with the Philadelphia Police Department.

Kelly says investigators aren’t sure exactly what the liquid was.

“Right now we don’t know what it is. It has a strong odor of gasoline,” Kelly said.

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Police are describing the scene as an “active investigation.”

Residents were evacuated but have been allowed back into their homes. The device has been rendered safe.

There were no injuries.

Stay with for the latest on this developing story.

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