Chipotle Mexican Grill has removed jalapeños from some of its restaurants as part of an ongoing investigation into a salmonella outbreak linked to multiple Mexican-style quick-service restaurants. The decision follows state health officials’ identification of jalapeños as a potential source of the contamination, which has sickened at least 110 people in Minnesota.

The Minnesota Department of Health confirmed on Tuesday that it is actively investigating the outbreak, which primarily affected consumers who ate at various restaurants, including Chipotle, between mid-June and mid-July. Of the cases they interviewed, the majority involved individuals who had recently eaten at Chipotle locations. However, health officials noted that the implicated jalapeños were distributed across multiple states and supplied to various food service retailers, indicating that other establishments beyond Chipotle may be affected.

Carlota Medus, senior epidemiologist supervisor at the Minnesota Department of Health’s Foodborne Diseases Unit, stated that while the department does not currently have concerns about ongoing illness linked directly to Chipotle due to steps taken by the company, it remains too early to conclude the outbreak has ended. Medus emphasized the possibility that contaminated products could still be circulating in the food supply.

In response to the investigation, Chipotle said it pulled jalapeños associated with the outbreak from all affected locations and replaced them with supplies from different growers as a precautionary measure. The company declined to disclose the specific origin of the initially implicated jalapeños but said the health and safety of their guests and employees remains their top priority.

The outbreak has had an immediate impact on Chipotle’s financial standing, with the company’s shares falling by approximately 10% on Tuesday amid investor concerns. Officials from the Minnesota Department of Health described Chipotle as cooperative throughout the investigation, contributing to containment efforts.

Public health authorities continue to monitor the situation closely to determine the full scope of the outbreak and to prevent further illnesses linked to contaminated jalapeños or other food products.