No nuclear sites were damaged after Israel allegedly launched retaliatory strikes against Iran, according to the head of the International Atomic Energy Agency (IAEA). “I’m urging everyone to exercise maximum restraint,” said Rafael Grossi, the director of the IAEA, and said the situation was “of great concern.” Iran fired air defences at a major air base and a nuclear site early Friday morning near the central city of Isfahan after spotting drones, which were suspected to be part of an Israeli attack in retaliation for Tehran’s unprecedented drone-and-missile assault on the country. No Irania…