Israeli Prime Minister Benjamin Netanyahu said on Monday that Iran has continued to preserve and expand its nuclear weapons knowledge for future use despite signing the nuclear deal in 2015. “Iran’s leaders repeatedly deny ever pursuing nuclear weapons,” he said during a prime-time televised address carried by Israeli networks. “Tonight I’m here to tell you one thing: Iran lied.” "First, Iran lied about never having a nuclear weapons program. 100,000 secret files prove it did. Second, even after the deal, Iran continued to preserve and expand its nuclear weapons knowledge for future use," Netanyahu said. "Third, Iran lied again in 2015 when it didnt come clear to the IAEA as required by the nuclear deal." “After signing the nuclear deal in 2015, Iran intensified its efforts to hide its secret files,” he said. “In 2017 Iran moved its nuclear weapons files to a highly secret location in Tehran.” Netanyahu referred to a secret Iranian nuclear project, codenamed “Amad”, which he said had been shelved in 2003, but he said work in the field had continued. Iran has always denied seeking nuclear weapons. Netanyahu spoke in English and showed pictures and videos purporting to be of historic secret Iranian nuclear facilities, as well as Iranian documents and plans to develop atomic weapons. He said Israel obtained tens of thousands of files "a few weeks ago in a great intelligence achievement". The 2015 deal that was meant to curb Iranian capabilities. US President Donald Trump has threatened to withdraw from the agreement reached between Iran and global powers. Israel has long opposed the agreement. Washington’s major European allies have urged the Trump administration not to abandon it and argue that Iran is abiding by its terms. Netanyahu met in Tel Aviv on Sunday with new US Secretary of State Mike Pompeo and both men talked tough about Iran. "We remain deeply concerned about Iran’s dangerous escalation of threats towards Israel and the region," said Pompeo. Netanyahu also discussed Iran by telephone with Trump over the weekend. Later on Monday, Trump said Netanyahu’s presentation and other recent events show that he has been "100 percent right" about Iran. He said he watched part of the Israeli PM’s presentation and that it was "good." Trump added that Irans behavior is "just not an acceptable situation,” pointing to missile tests and saying Tehran is "not sitting back idly." The head of Irans Atomic Energy organization said on Monday that Iran has the technical capability to enrich uranium to a higher level than it could before the multinational deal was reached. "Technically, we are fully prepared to enrich uranium higher than we used to produce before the deal was reached... I hope Trump comes to his senses and stays in the deal," Ali Akbar Salehi was quoted by Iranian state television as saying. Israel is widely believed to be the only nuclear-armed state in the Middle East, though it neither confirms nor denies possessing atomic weapons.