Afghanistan, April 9 -- An Iranian delegation will arrive in Islamabad on Thursday night for what Tehran described as serious negotiations based on its 10-point proposal, despite growing doubts inside Iran over whether the ceasefire framework can hold.

Iran's ambassador to Pakistan, Reza Amiri Moghadam, said the visit was taking place at the invitation of Prime Minister Shehbaz Sharif and would move ahead despite what he called repeated Israeli violations that have shaken public confidence in diplomacy.

The trip gives Pakistan a central diplomatic role at a moment when the U.S.-Iran truce is already under visible strain. Islamabad helped broker the temporary pause and has invited both sides to pursue a broader settlement, with U.S. Vice P...