Pittsburg June 22, 2022 2:01 pm Watch: Officials Confirm Pittsburg Fire Was Caused by Fireworks Contra Costa County officials confirmed Wednesday the vegetation fire in Pittsburg last week was caused by fireworks in the area. US & World Videos 1:48 Four tow trucks burned in Concord, Bay Point 1:49 Concord shop hosts final ‘Free Comic Book Day' at longtime home 1:08 Antioch school supervisor placed on leave after NBC Bay Area worker bullying report 2:40 Pro-Palestinian protests continue at UC Berkeley 2:08 Man speaks out after suspect arrested in Pittsburg hit-and-run