TOPMOST, Ky. (WMDJ) — Multiple fire departments are responding to a commercial structure fire at the Big S Market in Knott County.

According to the Garrett Area Volunteer Fire Department, the fire was reported early Wednesday morning along Old House Branch Road/KY 1091 in the Topmost area.

A county-wide all call was issued for Knott County fire departments, with neighboring agencies in Floyd County also providing mutual aid, including Garrett and South East fire departments.

Garrett firefighters said KY 7 and KY 1091 near the Big S Market have been shut down while departments conduct water shuttle operations.

Drivers are being asked to avoid the area because of the heavy emergency vehicle traffic.

Additional information about the fire, including the extent of the damage, has not yet been released.