BUTLER, Ind. (WANE) -- The City of Butler is back under a Boil Water Advisory after it was lifted Friday. According to a post on the City of Butler's Facebook page, the city is back under a Boil Advisory Saturday "until further notice." Initially, a Boil Advisory was put into effect Wednesday, later being lifted Friday. The post also states that they are continuing maintenance in order to clear up the issue. It is still unclear what is causing the Boil Advisory.