The Kent Fire Department says a carbon monoxide detector that was installed in an apartment because of a new law went off early Thursday awakening a family.

They evacuated and called 911.

Firefighters found high levels of carbon monoxide caused when the family closed a fireplace flue because they mistakenly thought a fire was completely out.

The fumes were vented and none of the five people in the apartment at Lake Fenwick Estate suffered any ill effects.