An E. coli outbreak in China Grove, North Carolina, has sickened at least four people, with another nine people possibly infected as well.

It was discovered after several people showed up at Northeast Medical Center in Concord, complaining about similar symptoms over the past few days. It’s believed to be the first outbreak of it’s kind in Rowan County. 

The health department says it appears all the people ate at one restaurant. "So far the common denominator has been the fact that these folks had eaten at Captain’s Galley," said Leonard Woods, director of the Rowan County Health Department.