There isn’t footage of the fire starting, but the story goes that Forest Gibson was recording a Kickstarter video with the camera when it suddenly started smoking. In the interest of safety, the crew jetted out of the space and came back in later to retrieve the SSD and the camera only to find the camera still smoking.

As far as I know, this is the first reported fire from a Blackmagic Cinema Camera. The footage was lost unfortunately, but thankfully nobody was seriously hurt. Blackmagic seems to be looking into the issue.