New Delhi, May 8 -- The head of the United Nations nuclear watchdog warned Wednesday that continued military activity around the Zaporizhzhia Nuclear Power Plant risked triggering a catastrophe after a reported drone incident damaged emergency infrastructure tied to the facility, sharpening fears over nuclear safety amid the grinding Russia-Ukraine war.

Rafael Grossi, director general of the IAEA, issued the warning after the agency said it had been informed that a drone detected over Enerhodar crashed into a building connected to the plant's emergency response center earlier this week, shattering windows and damaging equipment.

"These are examples of damage to nuclear emergency response equipment as a direct result of military activiti...