In this talk I will discuss the asymptotic isometry group in the near horizon region of non-extremal black holes, which turns out to be generated by an infinite-dimensional algebra. I will show that the set of charges associated to such symmetries happen to obey the same algebra, yielding an infinite number of conservation laws. This algebra contains both supertranslation and superrotation transformations. The connection with the so-called BMS algebra will be discussed.