Reports of a worker licking a pre-rolled joint at a processing facility in Bay City, Michigan, resulted in a recall of nearly 3,400 products on Thursday.

The complaint was filed at the Marijuana Regulatory Agency (MRA) that issued a health and safety warning “regarding pre-rolls contaminated with human saliva.” The incident took place at a processing facility identified as 3843 Euclid LLC. “They also operate Dispo, a retail and medical store at 3843 Euclid Ave. in Bay City. The processing license has been suspended for 14 days,” reports

Customers are urged to return the contaminated products, the sale of which took place between June and August 3. They are also encouraged to report adverse reactions following the use of the pre-rolls. Additionally, “provisioning centers must notify patients and caregivers who purchased these pre-rolls of the recall,” the MRA said in a statement.

An investigation is ongoing and could result in a further recall.

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