SUN VALLEY (CBSLA.com) — Officials said a fast-moving blaze heavily damaged a storage until filled with antiques causing an estimated $900,000 in damage.

Authorities said the two-story structure, located at the rear of a single family house, also contained propane, live ammo and acetylene tanks.

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The fire occurred in the 11000 block of Art Street, said Brian Humphrey, LAFD spokesperson.

As firefighters approached the structure, explosions could be heard from the interior, Humphrey said.

The fire burned quickly through “packrat-like conditions,” Humphrey said.

Smoke from the blaze was visible for more than a mile.

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More than 40 firefighters had the flames knocked down in 30 minutes, Humphrey said.

The owner of the property, whose name was not released, said the interior of the structure was filled with antique furniture, in various stages of restoration.

Humphrey said the owner estimated the value of the art and antiques at $500,000, and the structure itself at $400,000.

As he structure smoldered, firefighters were able to recover the cremains of a relative of the owner, Humphrey said.

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