One of Waikiki’s newest restaurants underwent a thorough cleaning after several diners got sick.

Herringbone Waikiki voluntarily closed Thursday after a string of illnesses was traced back to the restaurant.

A sign on the door read, “Unfortunately we will not open this evening and apologize for any inconvenience.”

The Hawaii Department of Health says it’s an outbreak of norovirus, which is a foodborne illness.

So far, up to 45 people have fallen ill, and officials say that number will rise.

According to a department report posted online, on Saturday, Oct. 7, at around 11:30 a.m, “three customers ordered and shared the toss salad. All three showed symptoms of nausea, vomiting, abdominal cramps and diarrhea.”

On Monday, diners who got sick called Herringbone and the health department.

An inspector was dispatched Tuesday and observed good personal hygiene practices. No employees were sick.