TEHERAN - Iran on Saturday held a state funeral for the military commanders and nuclear scientists killed during a 12-day conflict with Israel.

The ceremony was attended by the families of those killed in the attacks as well as high-ranking Iranian officials and military commanders, including President Masoud Pezeshkian, Judiciary Chief Gholamhossein Mohseni-Ejei, Parliament Speaker Mohammad Bagher Ghalibaf, Foreign Minister Seyed Abbas Araghchi and senior advisor to Iran's supreme leader, Ali Shamkhani, who was severely injured in the Israeli airstrikes on Tehran.

On June 13, Israel launched major airstrikes on different areas in Iran, including nuclear and military sites, killing several senior commanders, nuclear scientists and civilians. Iran responded by launching several waves of missile and drone attacks on Israel.

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Following the 12-day war, a ceasefire between Iran and Israel was achieved on Tuesday.

The mourners waved Iran's flags while chanting slogans against Israel and the United States. They carried pictures of the "martyred" commanders and nuclear scientists, including Chief Commander of the Islamic Revolution Guards Corps (IRGC) Hossein Salami, Chief of Staff of the Iranian Armed Forces Mohammad Bagheri, Chief Commander of the IRGC's Aerospace Division Amir Ali Hajizadeh and chief commander of the Khatam al-Anbiya Central Headquarters and his successor, Gholam Ali Rashid and Ali Shadmani respectively.

Iran's Interior Minister Eskandar Momeni said at the ceremony that the United States and Israel proved that they failed to honor any of their commitments.

He emphasized that the Iranian armed forces were highly vigilant to give a decisive response to any "malicious action" or breach of promises by the "enemy."

The burial ceremonies are scheduled to be held on Sunday.

Meanwhile, Iranian Foreign Minister Seyed Abbas Araghchi said early Saturday that if US President Donald Trump is sincere about seeking to reach an agreement with Teheran, he should put aside his "disrespectful tone" towards the Iranian supreme leader.

He made the remarks in a post on social media platform X while condemning the US president's several instances of using "disrespectful" language when speaking about Iran's Supreme Leader Ali Khamenei.

"If President Trump is genuine about wanting a deal, he should put aside the disrespectful and unacceptable tone towards Iran's Supreme Leader ... and stop hurting his millions of heartfelt followers," he said, noting that "good will begets good will, and respect begets respect."

"The complexity and tenacity of Iranians is famously known in our magnificent carpets, woven through countless hours of hard work and patience," he stressed, adding that however, "as a people, our basic premise is very simple and straightforward: we know our worth, value our independence, and never allow anyone else to decide our destiny."

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Facilitated by Oman, Iranian and US delegations had held five rounds of indirect talks since April on Tehran's nuclear program and the lifting of US sanctions.

However, the negotiations were halted earlier this month as Israel launched airstrikes on Tehran and other areas.

Also on Saturday, Iran reopened its airspace in central and western areas to passing international flights, the Roads and Urban Development Ministry announced.

The decision was made following the approval of the Civil Aviation Organization (CAO) of Iran and completion of security and safety assessments by the relevant authorities, ministry spokesman Majid Akhavan said in a statement.

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He added the country had earlier reopened its eastern airspace to domestic, international, and passing flights, stressing that no flight would land in or take off from Iran's airports in the northern, southern and western parts.

In another statement, the CAO said the country's airspace in the northern, southern, and western parts would remain closed until 14:00 local time (1030 GMT) on Sunday.

Iran closed its airspace on June 13 following Israeli airstrikes on Teheran and other areas. Following a 12-day aerial conflict, a ceasefire between the two sides was achieved on Tuesday.