Early this morning on February 8, a small area of Samsung's SDI facility in China caught fire. The local fire department said that the cause of the fire was due to waste products including faulty batteries, probably the same ones that were in the Galaxy Note7. The local officials said that "Material that caught fire was lithium batteries inside the production workshops and some half-finished products." Thankfully, the fire was put out with no casualties reported, that's after the local fire department of Tianjin showed up with 110 firefighters and 19 fire engines. That's how you fight...
Source: http://www.gsmarena.com/samsungs_sdi_facility_in_china_briefly_caught_fire_note7_batteries_could_be_to_blame-news-23287.php