ISLAMABAD, PAKISTAN - APRIL 11: (L-R) U.S. Vice President JD Vance shakes hands with Pakistan's Prime Minister Shehbaz Sharif during their meeting on April 11, 2026 at Islamabad, Pakistan. The proposed meeting marks a rare direct engagement between senior U.S. and Iranian officials, as Washington and Tehran seek to advance stalled negotiations over Iran's nuclear programme, with Pakistan serving as neutral ground amid persistent tensions between the two countries. (Photo by Jacquelyn Martin - Pool/Getty Images)

ISLAMABAD, PAKISTAN - APRIL 11: (L-R) Pakistani Deputy Prime Minister and Foreign Minister Mohammad Ishaq Dar, Pakistan's Prime Minister Shehbaz Sharif, and Pakistan's Interior Minister Mohsin Naqvi, arrive for a meeting with U.S. Vice President JD Vance on April 11, 2026 at Islamabad, Pakistan. The proposed meeting marks a rare direct engagement between senior U.S. and Iranian officials, as Washington and Tehran seek to advance stalled negotiations over Iran's nuclear programme, with Pakistan serving as neutral ground amid persistent tensions between the two countries. (Photo by Jacquelyn Martin - Pool/Getty Images)

ISLAMABAD, PAKISTAN - APRIL 11: Pakistan's Prime Minister Shehbaz Sharif, takes his seat during a meeting with U.S. Vice President JD Vance on April 11, 2026 at Islamabad, Pakistan. The proposed meeting marks a rare direct engagement between senior U.S. and Iranian officials, as Washington and Tehran seek to advance stalled negotiations over Iran's nuclear programme, with Pakistan serving as neutral ground amid persistent tensions between the two countries. (Photo by Jacquelyn Martin - Pool/Getty Images)

ISLAMABAD, PAKISTAN - APRIL 11: U.S. Vice President JD Vance (C) walks up stairs ahead the meeting with Pakistan's Prime Minister Shehbaz Sharif on April 11, 2026 at Islamabad, Pakistan. The proposed meeting marks a rare direct engagement between senior U.S. and Iranian officials, as Washington and Tehran seek to advance stalled negotiations over Iran's nuclear programme, with Pakistan serving as neutral ground amid persistent tensions between the two countries. (Photo by Jacquelyn Martin - Pool/Getty Images)

ISLAMABAD, PAKISTAN - APRIL 11: (L-R) U.S. Vice President JD Vance meets with Pakistan's Prime Minister Shehbaz Sharif during their meeting on April 11, 2026 at Islamabad, Pakistan. The proposed meeting marks a rare direct engagement between senior U.S. and Iranian officials, as Washington and Tehran seek to advance stalled negotiations over Iran's nuclear programme, with Pakistan serving as neutral ground amid persistent tensions between the two countries. (Photo by Jacquelyn Martin - Pool/Getty Images)

ISLAMABAD, PAKISTAN - APRIL 11: People watch as the motorcade carrying Vice President JD Vance speeds ahead the meeting with Iranian officials on April 11, 2026 at Islamabad, Pakistan. The proposed meeting marks a rare direct engagement between senior U.S. and Iranian officials, as Washington and Tehran seek to advance stalled negotiations over Iran's nuclear programme, with Pakistan serving as neutral ground amid persistent tensions between the two countries. (Photo by Jacquelyn Martin - Pool/Getty Images)

ISLAMABAD, PAKISTAN - APRIL 11: (L-R) U.S. Vice President JD Vance is greeted by Pakistan's Prime Minister Shehbaz Sharif during their meeting on April 11, 2026 at Islamabad, Pakistan. The proposed meeting marks a rare direct engagement between senior U.S. and Iranian officials, as Washington and Tehran seek to advance stalled negotiations over Iran's nuclear programme, with Pakistan serving as neutral ground amid persistent tensions between the two countries. (Photo by Jacquelyn Martin - Pool/Getty Images)

ISLAMABAD, PAKISTAN - APRIL 11: U.S. Vice President JD Vance (C) arrives to the meeting with Pakistan's Prime Minister Shehbaz Sharif on April 11, 2026 at Islamabad, Pakistan. The proposed meeting marks a rare direct engagement between senior U.S. and Iranian officials, as Washington and Tehran seek to advance stalled negotiations over Iran's nuclear programme, with Pakistan serving as neutral ground amid persistent tensions between the two countries. (Photo by Jacquelyn Martin - Pool/Getty Images)