New Delhi, June 21 -- Israeli attacks on nuclear sites in Iran have caused a sharp degradation in nuclear safety and security although they have not so far led to a radiological release affecting the public but there is a danger this could occur, International Atomic Energy Agency (IAEA) Director General Rafael Grossi has warned.

''Nuclear facilities and material must not be shrouded by the fog of war,'' the IAEA DG told the UN Security Council, pointing out that the IAEA has been monitoring closely the situation at Iran's nuclear sites since Israel began its attacks.

Referring to the Bushehr Nuclear Power Plant, he said this is the nuclear site in Iran where the consequences of an attack ''could be most serious".

''It is an operating nu...