A fire engulfed a three-story building in National City Wednesday night, according to authorities.
Authorities said the fire sparked around 8:30 p.m. at a storage building on East 8th Street and Euclid Avenue.
Fire crews arrived to visible smoke showing from the upper floor of the building, which is located at the Paradise Valley Hospital facility. The building is used to store supplies such as paint.
There was concern those materials could create toxic fumes but firefighters quickly realized the fire wasn't in an area close to those materials.
Firefighters were able to put out the fire in about 40 minutes.
Firefighters did say there was some difficulty in putting out this blaze because they had a tough time getting in because the building was so full of items.
They also had a hard time determining where the fire was because the structure was deceiving.
No injuries were reported. The cause of the fire is under investigation.
The fire was never a threat to the hospital's main campus with patients.