ABC News reports a Massachusetts restaurant has been shut down until further notice after nearly 40 people reported getting sick during a suspected salmonella outbreak.

The North Reading Board of Health posted an advisory saying the state Public Health Department had received complaints from 39 people who said they got sick at Kitty’s late last month. The state confirmed nine cases of salmonella and 30 suspected cases of salmonella.

The source of the outbreak was traced to the antipasto salad.

The restaurant was closed July 5 and allowed to reopen Friday after a sanitization but has since closed again.