HOUSTON -- Dramatic cell phone video shows the rescue of a worker on the upper floors of a building engulfed in flames.

You can see the worker on the ledge of the top floor as fire rages around him.

The apartment building which was under construction was engulfed in a five alarm fire just west of downtown Houston Tuesday.

As the flames and heat increase, the worker lowers himself to the ledge below.

Eventually firefighters on a ladder reach the man who climbs to safety.

As firefighters on the ground move the ladder away from the building, the walls of the top floor suddenly collapse raining fiery debris all around the worker and the fireman.

Amazingly, no injuries were reported from the blaze.

No word yet on the cause of the fire.

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