An explosion ripped through Mexico's second-largest oil refinery on Saturday -- Tula produces 315,000 barrels per day -- causing a massive fire, killing two workers and severely injuring a third.

http://www.reuters.com/article/2011/07/31/pemex-idUSN1E76U05620110731

Following slides were forwarded to me

WARNING !!!

Some photos are graphic and may be disturbing

No details of the cause of the fire. Just a vivid reminder of the industry we work in and what could happen at any facility at any time.