A phone call from Israeli Prime Minister Benjamin Netanyahu to US Vice President JD Vance made in the middle of negotiations derailed what could have been a breakthrough in the Iran-US standoff, Tehran has claimed.

Iran’s Foreign Minister Seyed Abbas Araghchi made the allegation on X, hours after Vance left Islamabad without an agreement following over 21 hours of talks in the Pakistani capital.

“Netanyahu’s call to Vance during the meeting shifted the focus from US-Iran negotiations to Israel’s interests,” Araghchi wrote. “The US tried to achieve at the negotiating table what it could not achieve through war.”

He said Iran had entered the Pakistan-hosted negotiations in good faith, adding Vance’s press conference before his departure was “unnecessary.” He said Iran remained “committed and prepared to safeguard our nation’s interest and sovereignty.”

Washington has not confirmed or denied the Netanyahu call.