This is an archived article that was published on sltrib.com in 2015, and information in the article may be outdated. It is provided only for personal research purposes and may not be reprinted.

Fire investigators on Thursday afternoon were venting a University of Utah building after a small explosion occurred in a storage room.

About 11:10 a.m. Thursday, there was an explosion in a storage room of the Henry Eyring chemistry building. The explosion started a small fire, which was extinguished by a sprinkler, said Salt Lake City Fire spokesman Jasen Asay.

Hazardous materials crews determined that a chemical reaction happened inside "a specialized cabinet, which contained the small explosion," according to the department. The heat from the explosion was enough to melt the cabinet and activate a sprinkler, the department added in a tweet.

Crews also found hazardous materials in the air inside the building, and at 3 p.m. were venting the air and monitoring the air outside, according to the fire department.

The building was evacuated. No one was reported injured.

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