Grotto Pizza closed the dining rooms of its Harveys Lake and Wilkes-Barre Twp. locations on Sunday after three of its employees tested positive for COVID-19, according to a message posted to the Grotto Pizza Facebook page.

The message, posted around 6 p.m. Sunday, reads in part:

“Last night, we at Grotto Pizza Harveys Lake became aware that one of our wait staff tested positive for COVID-19. Earlier today (Sunday, June 28) we became aware that a close associate of this person also tested positive. This second person also is a member of our service staff at Harveys Lake. And then finally, another close associate of both these persons tested positive for COVID-19. This third person works in the dining room at our Wilkes-Barre location. We took these immediate steps: one, informing all employees who may have had contact with these individuals; two, shutting down our dining rooms in order to undertake an exhaustive sanitizing/cleaning of the facilities.”

According to Grotto’s Facebook post, the three employees are close associates outside of work and two of them had recently traveled to another state. After developing symptoms, the employees stayed home from work.

Grotto is performing an intensive cleaning of its Harveys Lake and Wilkes-Barre locations, and will not open the dining room at either location until Grotto management is confident there is no risk to the public, the post states.

Grotto also continues to conduct an internal investigation.

“Most businesses of all types will likely experience exposure to this illness in some fashion during the months ahead,” the post states. “The key is to react swiftly and thoroughly to limit exposure, which we have done in this case.”