The director of Israel’s intelligence agency Mossad is set to travel to Washington DC next week for talks as the US and Iran seem ready for an agreement to revive the 2015 nuclear deal. 

Axios correspondent Barak Ravid quoted a senior Israeli official as saying on Sunday that David Barnea will attend closed door classified meetings of House and Senate intelligence committees.

In remarks that were not coordinated with Prime Minister Yair Lapid, the spymaster described the emerging agreement "a strategic disaster" for Israel and the United States “is rushing into an accord that is ultimately based on lies,” referring to Iran’s claim that its nuclear activities are peaceful in nature.

Shortly after Barnea’s comments were published, Lapid called the Mossad chief, telling him he had gone off script in his criticism of the US and asking for a clarification.

Barnea’s visit is the latest effort by Israel to sway Western powers from returning to the landmark accord. 

Earlier in the day, Lapid said that Israel's “diplomatic fight” against the deal included its National Security Adviser Eyal Hulata and Defense Minister Benny Gantz holding recent meetings in the US.

“We are making a concerted effort to ensure the Americans and Europeans understand the dangers involved in this agreement,” Lapid said, reiterating that what was signed in 2015 was “not a good deal,” and that the one currently being discussed entails “greater dangers.”

Lapid and US President Joe Biden are likely to meet in September, Israel’s Kan news reported on Saturday, citing unnamed officials. 

Iran is currently reviewing the US response to its position earlier sent to the European Union, which acts as a mediator between the two sides.