A wildfire east of Sells continued to grow Thursday, sending smoke over Tucson.
The Contreras Fire was first reported Saturday on a remote ridge of the Baboquivari Mountains.
The fire had grown to about 11,500 acres and was 0% contained as of Thursday, pushing through grass and brush on rugged terrain.
The fire has forced the evacuation of Kitt Peak and closed State Route 386 at mile marker 1.
Meanwhile, Pima County issued an advisory for ground-level ozone pollution for the Tucson Metropolitan Area on Thursday due in part to smoke from the wildfire.
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