(ANSA-AFP) - ENERGODAR, MAR 29 - The UN's atomic agency chief warned Wednesday of "increasing" military activity around the Zaporizhzhia nuclear plant and hoped Russia and Ukraine would agree on safety principles. "It is obvious that the military activity is increasing in this whole region," Rafael Grossi told AFP, adding that during his visit "the idea is to agree on certain principles, certain commitments, including not to attack the plant. (ANSA-AFP).