Israeli Prime Minister Benjamin Netanyahu on Thursday described what he said was a secret atomic warehouse in Tehran and accused Europe of appeasing Iran as he sought to rally support for U.S. sanctions against the Islamic Republic.

Addressing the United Nations General Assembly, Netanyahu showed an aerial photograph of the Iranian capital marked with a red arrow and pointed to what he said was a previously secret warehouse holding nuclear-related material. He argued this showed Iran still sought to obtain nuclear weapons, despite its 2015 agreement with world powers to curb its program in exchange for a loosening of sanctions.

Netanyahu spoke 4½ months after U.S. President Donald Trump withdrew from the accord, arguing it did too little to rein in Tehran's nuclear ambitions and triggering the resumption of U.S. economic sanctions on Iran.