Prime Minister Binyamin Netanyahu plans to tell the United Nations General Assembly that Iran has enough uranium to produce nuclear weapons, according to the Sunday Times.

An unnamed senior Israeli official was quoted as having told the newspaper that Netanyahu will say in his speech on Tuesday that Iran currently has 219 kilograms (482 pounds) of enriched uranium, which is enough to produce a nuclear weapon.

The report said that Netanyahu will also claim that “Iran has made significant progress in its nuclear program since the new president Hassan Rouhani was elected.”

The Sunday Times also reported that during Netanyahu’s meeting with President Barack Obama in Washington on Monday, the Israeli prime minister will present Obama with an intelligence dossier containing evidence that Iran is stepping up its nuclear program.

As he left for New York overnight Saturday, Netanyahu promised “to tell the truth in the face of the sweet talk and charm offensive of Iran.”

“Telling the truth at this time is essential for world peace and security and, of course, for Israel’s security,” noted Netanyahu.

Earlier in the week he described the so-called “moderate” Rouhani’s conciliatory speech to the United Nations General Assembly as “cynical” and “full of hypocrisy.”

In his UN address, Rouhani said that “nuclear weapons… have no place in Iran’s security and defense doctrine.” He claimed that Iran poses a threat to noone.

Rouhani made history on Friday by speaking by phone to U.S. President Barack Obama, in the first contact between the countries’ leaders since the 1979 Islamic revolution.