CASTLE ROCK, Colo. — The Colorado Department of Transportation is warning drivers of a closure on southbound I-25 at Tomah Road in Castle Rock.

The closure went into place at about noon on Wednesday.

CDOT is citing the reason for Wednesday’s road closure as “fire activity,” between Exit 174 (Tomah Road) and Exit 163 (County Line Road).

Traffic is already being impacted on the interstate.

This article will be updated.