A Chapel Hill restaurant has been linked to an outbreak of norovirus, according to WTVD.

Health officials say 41 people reported getting sick in recent weeks after eating at the Nantucket Grill or attending an event catered by the restaurant.

The first illnesses were reported May 7.

Nantucket Grill has locations in Durham and Chapel Hill.

Inspectors have checked out all locations, but haven’t been able to pinpoint the source of the virus.