Chipotle has removed jalapenos from its restaurants after the peppers were linked to a salmonella outbreak in Minnesota. The fast-food chain said it pulled the affected supply and replaced it with peppers from another grower, according to a company statement. The action comes amid a food-poisoning investigation in the state. News of the possible link weighed on Chipotle's stock, which fell in trading. The company did not say how many locations were affected or whether any illnesses had been confirmed in connection with the specific batch. The outbreak investigation is ongoing, and the Minnesota Department of Health has not yet released details about the number of cases. Chipotle said the replacement peppers came from a different supplier to ensure safety. The chain has faced food-safety issues in the past, but this is the latest incident to draw attention. Customers in Minnesota may have been exposed to the contaminated peppers, though the company did not specify a timeframe. The restaurant chain said it is cooperating with health officials. No other states have been mentioned in connection with the outbreak. Chipotle's stock decline reflects investor concerns about potential fallout from the contamination scare.