FIFA Secretary-General Mattias Grafstrom says he held a "constructive" and "positive" meeting with Iran's FA President Mehdi Taj in Istanbul, Turkey, on Saturday and expressed confidence about Iran's participation at this year's World Cup.

The Iranian team is scheduled to play New Zealand on June 15 in Los Angeles, but the team has not been granted visas.

There were no immediate updates on the visa issue.

-ABC News' Claire Bower

Pakistan's interior minister Mohsin Naqvi arrived in Tehran Saturday for a two-day official visit, meeting with his Iranian counterpart.

The Iranian semi-official news agency reported that the diplomacy is part of Pakistan's continued efforts to facilitate peace talks between the United States and Iran that have stalled.

-ABC News’ Claire Bower

The IDF said that they have killed Izz al-Din al-Haddad, the head of Hamas’ military wing and "one of the last senior Hamas leaders involved in planning the October 7th massacre."

"Haddad assumed his role following the elimination of Mohammed Sinwar, and over the recent period, worked to rebuild the capabilities of the terrorist organization's military wing and to plan numerous terror attacks against Israeli civilians and IDF troops," the IDF said in their statement.

The IDF said that Haddad was "involved in the holding of many Israeli hostages in Hamas captivity. Haddad managed Hamas’ hostage captivity system and surrounded himself with hostages in an attempt to prevent his elimination."

"Haddad is one of the longest-serving commanders in Hamas, having joined the terrorist organization during its early establishment, and maintained close ties with Hamas leadership," the IDF said. "Haddad played a central role in Hamas’ terrorist rule and held a number of senior positions, such as the commander of the Gaza City Brigade and commander of additional units."

-ABC News' Rashid Haddou

After two days of talks in Washington, D.C., Israel and Lebanon have extended their ceasefire for 45 days "to enable future progress" in negotiations, the State Department announced Friday.

The talks were “highly productive” and the next round of political negotiations would reconvene on June 2 and 3, spokesperson Tommy Pigott said.

He also announced that a second, security focused track for the talks would be launched through the Pentagon, starting on May 29 and featuring military delegations from both countries.

"We hope these discussions will advance lasting peace between the two countries, full recognition of each other’s sovereignty and territorial integrity, and establishing genuine security along their shared border,” Pigott said.

-ABC News' Shannon K. Kingston