A salmonella outbreak at an Old Country Buffet in Maple Grove sickened 23 people, causing one diner to be hospitalized for about two weeks, according to the Minnesota Department of Health.

The outbreak affected people who ate at the restaurant in late January, particularly on Jan. 25, said Doug Schultz, a health department spokesman. Sick diners were of a broad age range and one middle-aged diner was hospitalized.

The health department didn’t give out further details. An investigation is ongoing.