Crews battle fast-spreading Gann Fire near New Hogan Lake in Calaveras County

Crews were battling a fast-spreading vegetation fire near New Hogan Lake in Calaveras County on Monday.

The California Department of Forestry and Fire Prevention (Cal Fire) said a fire was burning in the area of Hogan Dam and Gann roads, on the southeastern side of the lake.

Cal Fire's incident page for what has been dubbed the Gann Fire shows the fire has burned roughly 100 acres at a "dangerous rate of spread through grass and brush." No containment has been reported.

As of 6: 30 p.m., no evacuations were ordered and there was no word on whether any structures were threatened.

Calaveras Consolidated Fire said crews responded to assist with the fire fight.

This is a developing story. Check back here for updates as they become available.