French President Emmanuel Macron has said that US strikes on Iran’s nuclear facilities were “genuinely effective” but the “worst-case scenario” would be if Tehran now exits the global non-proliferation treaty, AFP reports.

“The worst would be that the consequence of this is Iran’s exit from the Non-Proliferation Treaty and therefore, ultimately, a drift and a collective weakening,” Macron told journalists after an EU summit in Brussels.

Macron said that in a bid to maintain the treaty — which is meant to limit the spread of nuclear weapons — he would speak in the coming days to the five members of the United Nations Security Council.

“Our hope is that there will be a real convergence of views,” Macron said, adding that the aim was “that there should be no resumption” of nuclear buildup by Iran.