Firefighters are racing to contain California’s largest wildfire of the year. The Oak Fire in Mariposa County has exploded in size as 6,000 people are now displaced by the blaze. WATCH THE FULL EPISODE OF 'WORLD NEWS TONIGHT': https://bit.ly/3uHCDO5 WATCH OTHER FULL EPISODES OF WORLD NEWS TONIGHT: http://abc.go.com/shows/world-news-tonight WATCH WORLD NEWS TONIGHT ON HULU: https://bit.ly/3iQLwPp #wildfire #california #oakfire