WILMINGTON, Del. (CBS) – A warehouse fire in Delaware on Wednesday could have had dire consequences.

Around 4:14 p.m., Wilmington City firefighters responded to a fire at a large warehouse at 1020 Christiana Avenue.

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The warehouse is occupied by Intercontinental Services at the entrance to the Port of Wilmington, and it contained bulk storage of about 7,000-12,000 tons of Sodium Nitrate.

Officials say the hazardous material – which is an oxidizer and can accelerate burning and cause moderate health hazards – was in close proximity to the blaze but was not on fire.

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The fire was contained and extinguished by officers without spreading.

An investigation into the cause of the fire is ongoing.

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