Iran live updates: Trump to hold national security meeting Monday, officials say

Iran's foreign minister, Abbas Araghchi, arrived in Islamabad Sunday following talks with Oman's sultan in Muscat as regional diplomatic efforts to end the war continue, according to Iran's semi-official Tasnim News Agency.

Araghchi first arrived in Islamabad on Friday evening and met with Pakistan's prime minister, foreign minister and army chief, in what Iranian media described as an effort to convey Tehran's position on the conflict.

Tasnim also reported that Araghchi held phone calls with his Qatari and Saudi counterparts to discuss developments surrounding the ceasefire and ongoing diplomatic efforts related to the conflict between Iran and the U.S.

Oman has for years acted as a back channel for different negotiations between Tehran and Washington.

Since the U.S.-Israeli attacks on Iran began on February 28, Iran has launched strikes against several countries in the region, including Qatar and Saudi Arabia. Both countries are influential Arab states with close ties to the U.S., despite not being direct parties to the conflict.

-ABC News' Maryam Rahimi

Israel Defense Forces spokesperson Avichay Adraee on Sunday ordered the residents of seven Lebanese villages to the north of the Litani River to evacuate, saying the IDF was planning to "act forcefully" against alleged Hezbollah targets in the area.

"Anyone present near Hezbollah elements, their facilities, or their combat means is endangering their life," Adraee wrote.

Iranian state media reported Saturday night that Iran's Foreign Minister Abbas Araghchi was returning to Islamabad, Pakistan, from Muscat, Oman following meetings in Pakistan earlier on Saturday.

IRNA, Iran's official news agency, said in a Telegram post that Araghchi was scheduled to revisit Islamabad after completing his trip to Oman and before heading to Russia.

IRNA also reported that part of Araghchi's delegation returned to Tehran from Islamabad on Saturday "to consult and obtain the necessary instructions on issues related to ending the war."

The delegation members are scheduled to rejoin Araghchi in Islamabad on Sunday night, IRNA reported.

-ABC News' Rashid Haddou and Claire Bower

Israeli Prime Minister Benjamin Netanyahu instructed the Israel Defense Forces to "vigorously attack Hezbollah targets in Lebanon," according to a statement published by the prime minister's office announced on Saturday evening.

The order came amid a fragile temporary ceasefire between the two sides that has been in place since April 16. Israeli and Hezbollah attacks have continued despite the ceasefire, which President Donald Trump said on Thursday had been extended by three additional weeks.

-ABC News' Morgan Winsor