Each year, the residents of San Cristobal Verapaz in Alta Verapaz Guatemala have a tradition where they throw flaming balls of fabric that have been soaked in gasoline. It is an intense tradition that preceeds the day of the immaculate conception of the virgin Mary.
Many of the photos were published by the Guatemalan media Comvite. The article can be read here: http://comvite.com/the-flaming-balls-of-the-immaculate-conception/