Amagansett firefighters are working to contain a fire in a guest house on the art dealer Larry Gagosian's Further Lane property. 

The fire, which was suspected to be electrical in origin, was reported after an alarm went off around 4:45 p.m. Firefighters reported light smoke in the crawl space, and they were checking behind walls with thermal imaging cameras.

The iconic 11,000-square-foot house, designed by the late Charles Gwathmey, was heavily damaged in a June 2011 fire that was linked to plumbing work.