UNIVERSAL CITY (CBS) — Hundreds of people were evacuated Wednesday after a chemical leak was detected in an office building located at the Universal Studios complex.

An estimated 400 people from nearly all floors of the 15-story building that houses the studio’s executive offices in the 3900 block of Lankershim Boulevard were cleared out, according to Los Angeles Fire Department spokesman Don Kumitomi.

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Firefighters responded to initial reports of a possible refrigerant leak.

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“The initial reports stated that the smell of chlorine was coming from a sub-basement chiller room area, which is a unit that helps with the HVAC system,” Kumitomi told KNX 1070.

He added the chemicals are static, which means there is no gas flowing around and there is no cloud.

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No injuries have been reported.