A Danbury steakhouse closed its doors following an investigation into foodborne illnesses reported by customers, city health officials confirmed.

City and state health officials say they are working to investigate Barbarie's Black Angus Grill on Eagle Road, which closed Thursday.

The Health Department says it's working with the restaurant to determine the source of the illness.

Lisa Morrissey, the Health and Human Services director of Danbury wrote in a statement,  "At this time I can confirm that we are looking into reports of foodborne illness. We are working in conjunction with the state Department of Public Health to determine to source of the diners recent illness."

Morrissey would not comment on the number of complaints associated with the restaurant or specifically what type of illnesses were reported.