By www.wdbj7.com (Virginia)

We now know what caused the carbon monoxide leak at a Roanoke College fraternity house.

Fire officials tied the leak to a clogged flue pipe in the boiler system.  The students returned to the house Saturday night.

Newly-installed carbon monoxide detectors may have saved the lives of some Roanoke College Students. Detectors warned them of a carbon monoxide leak overnight at the Sigma Chi fraternity house on campus.

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