AUGUSTA — A Jewish organization has sued a Maine-based organic dairy for alleged unauthorized use of the group’s symbol that certifies that its milk is kosher.

The Union of Orthodox Jewish Congregations of America is asking a judge to order Maine’s Own Organic Milk Co. to stop using the symbol and is seeking monetary damages.

The Orthodox Union claims the dairy has infringed on its trademark – the letter “U” in a circle – that signifies a food has been prepared in accordance with Jewish dietary rules.

The lawsuit was filed last week in federal court in Massachusetts.

Dairy Executive Director William Eldridge tells the Bangor Daily News he hopes to resolve the issue out of court. He acknowledges the Augusta-based dairy uses the symbol without having paid annual fees.