The International Atomic Energy Agency (IAEA) condemned Iran's decision to "close 27 cameras" dedicated to monitor its nuclear activities, warning of a "fatal blow" to talks on this file if the disruption continues. "This action naturally poses a major challenge to our ability to continue working there," IAEA Director General Rafael Mariano Grossi said during a press conference at IAEA headquarters in Vienna yesterday, Thursday. Grossi explained that IAEA, which is charged with verifying the peaceful nature of Iran's nuclear program, is able to continue its monitoring and inspections and has other tools to do so, but Tehran's decision leads to "less transparency and greater uncertainty." He said: If things continue in this way, the Agency will not be "within three or four weeks" able to provide the necessary information about the follow-up of the Iranian nuclear program, stressing that this "would constitute a fatal blow" to the agreement concluded in 2015 that stipulated limiting Iran's nuclear activities in return for relief from international sanctions. In a joint statement, Washington, London, Paris and Berlin stressed that Iran must comply with and fulfill its legal obligations and cooperate with the International Atomic Energy Agency.