Rafael Grossi, head of the International Atomic Energy Agency (IAEA), said on Monday he is concerned about Israel possibly targeting Iranian nuclear facilities, Reuters reported.

Grossi said Iran closed its nuclear facilities on Sunday over "security considerations" and that while they reopened on Monday, he kept IAEA inspectors away "until we see that the situation is completely calm."

"We are going to resume tomorrow," Grossi told reporters in New York. "This has not had an impact on our inspection activity."

Asked about the possibility of an Israel strike on Iranian nuclear facilities, Grossi replied, "We are always concerned about this possibility." He urged "extreme restraint."... Read More: Arutz-7