On Tuesday, Grossi said that a car carrying agency experts was hit by a drone on its way to the ZNPP.
"This was a direct attack. I am not pointing fingers because this agency is a corps of international auditors and before doing that, one has to have irrevocable and definite elements to say so. But whoever did this knew exactly what was being done ... so it was a clear intention to harm us or to intimidate us," Grossi told the IAEA Board of Governors.
The convoy had three Ukrainian vehicles, but it was the agency's vehicle that was the target of the attack, the IAEA chief said.
"We will not cease our operation. We will continue there," Grossi said, adding that this is not the first time that the agency faces difficulties.