BLAZING flames and toxic fumes kept a desperate captain and crew from rescuing the 34 helpless souls trapped below deck on a California diving ship — dooming them to die!

That’s the shocking reason skipper Jerry Boylan and four crew members abandoned the 75-foot Conception after it became engulfed in flames off the coast of Santa Barbara in the early morning hours on Labor Day, sources tell GLOBE.

Though Boylan and some of his crew were able to escape in a dinghy, they left behind 33 passengers and another deckhand, who were sleeping in luxury quarters.

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