https://archive.is/J9UY7 (new york times)

Pakistani fighter jets escorted the Iranian airplanes carrying a delegation of more than 70 Iranians from the border of Iran to Islamabad and back again when the session was over.

But on the way back to Tehran, an Israeli security threat emerged.

Iran’s security forces notified the plane carrying Mr. Ghalibaf back to Tehran that they had picked up intelligence that Israel planned to attack the plane and that two Israeli fighter jets had entered Iran’s airspace from its western border near Iraq, the two officials said.

Mahdi Mohammadi, a senior adviser for Mr. Ghalibaf, who accompanied him to Islamabad, confirmed this account on his social media page. The plane made an emergency landing in the city of Mashhad, Iran’s closest airport to the Pakistani border, and the Iranian delegation traveled some eight hours by land back to Tehran, Mr. Mohammadi and the two officials said.