Foster Farms is voluntarily halting operations at its troubled plant in Livingston, CA, according to a news release from the company. Operations at the plant were originally shut down by the U.S. Department of Agriculture on Jan. 8 for a cockroach infestation. Before that, the plant was one of three tied to an ongoing Salmonella outbreak that has sickened at least 416 people in 23 states. The company says it is temporarily closing the plant down again to further expand its “manufacturing procedures and monitoring systems.” The plant currently has no date set to re-open but is planned to be closed for several days. The company says that no products, packaging or lines were affected by the reasoning for the closure. No Foster Farms chicken has been recalled despite the Salmonella outbreak and pest infestation.