A type of bacteria found in meat and pre-cooked food left at unsafe temperatures was responsible for sickening hundreds of people who ate at a Chipotle restaurant in Ohio, local health officials said on Thursday.

The customers said they suffered from food poisoning and diarrhea after eating dishes including tacos and burrito bowls.

Chipotle’s stock fell by “as much as 5.9 per cent to $263, bringing them to the lowest level in almost five years,” Bloomberg reports.