U.S. President Donald Trump acknowledged that he had called Israeli Prime Minister Benjamin Netanyahu “crazy” and said he felt “a little bit perturbed” that Israel’s fighting with Hezbollah militants in Lebanon was hindering peace negotiations with Iran.

The negotiations have dragged on for several weeks, and tensions have risen as the war between Israel and Iranian-backed Lebanese militias continues to escalate. The conflicts have become increasingly complicated as Iran insists that any potential ceasefire agreement must simultaneously bring an end to the fighting in Lebanon.

Israel and Lebanon agreed on Wednesday to extend the fragile ceasefire and establish several pilot security zones within Lebanon, from which Hezbollah militants are barred.

A new round of negotiations will take place during the week of June 22, with the aim of “reaching a comprehensive agreement”.