Two men were arrested for allegedly building a meth lab in a Cedar Rapids, Iowa, Taco Bell where one of the men worked, police said on Wednesday.

Police entered the closed restaurant and discovered the remnants of what they said was a methamphetamine lab in the store’s utility area.

Officials identified the two men as Christopher Adam Matous, 31, and Kent Jerome Duby, 56. Police charged the two with conspiracy to manufacture methamphetamine. Matous was also charged possession of meth.

In a statement, Taco Bell admitted that one of the two men was an employee but that he has since been fired. The company also noted that the location would be thoroughly sanitized before reopening.

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