UPDATE: WBIR with first media report online. CORRECTION: WVLT had first media report online. MORE: KNS files this report with more details. Most important detail: no injuries.

Original post follows:

Lots of black smoke over Alcoa north of us, maybe in the vicinity of East Hunt Road? Lots of scanner traffic from Alcoa FD positioning equipment. There are apparently some problems rerouting traffic around the scene.

Drama as it unfolds after the jump.

UPDATE: Just heard on the scanner they are requesting Alcoa Electric to come out and secure some power lines where they are hosing. Still haven't heard the location...

UPDATE: Alcoa FD requests Blount (or Maryville?) FD to cover Alcoa for them for a while. Sounds like Alcoa FD has all available manpower and equipment on the scene.

UPDATE: The location may be in the vicinity of E. Hunt Road and Maryville Pike...

UPDATE: Sounds like Blount Co. FD now assisting at the scene...

UPDATE: Fire is under control.

UPDATE: Alcoa FD spokesperson says it is the old water treatment plant on Sam Houston School Rd. A "black liner" in one of the old tanks caught fire. All Alcoa FD units are on the scene, and they have requested assistance from Blount Co. FD.

Ed. Note: I believe this is near Lagrange Rd., just off Maryville Pike and near Edgewood Acres. Might want to avoid that area...

UPDATE: Captain on the scene requests dispatch to let nearby school know that the road (Sam Houston School Road?) is closed and may not be reopened by the time school is out and buses arrive. (Believe this would be Eagleton Elem.?)

UPDATE: (1:45) Fire is out, equipment being recovered.

UPDATE: "Media people" being let on the scene.

UPDATE: (2:05) Roads will be reopened soon, "shouldn't be too much longer."

UPDATE: (2:18) Captain on the scene declares "command event terminated."

UPDATE: Captain thanks Blount FD for their help and commends them on their performance.

UPDATE: (2:24) All Alcoa units on the scene cleared.

UPDATE: (2:24) Sam Houston School Road cleared and reopened.