![Ata Dadashi In this photo provided by Fars News Agency, mourners gather around a truck carrying coffins of Iranian President Ebrahim Raisi and his companions who were killed in a helicopter crash on Sunday in a mountainous region of the country's northwest, during a funeral ceremony at the city of Tabriz, Iran, Tuesday, May 21, 2024. Mourners in black began gathering Tuesday for days of funerals and processions for Iran's late president, foreign minister and others killed in a helicopter crash, a government-led series of ceremonies aimed at both honoring the dead and projecting strength in an unsettled Middle East. (Ata Dadashi, Fars News Agency via AP)](https://mapi.associatedpress.com/v2/items/eaecf1eb6a2a48a5b4bddb853a97e9a5/preview/preview.jpg?s=680x)
In this photo provided by Fars News Agency, mourners gather around a truck carrying coffins of Iranian President Ebrahim Raisi and his companions who were killed in a helicopter crash on Sunday in a mountainous region of the country's northwest, during a funeral ceremony at the city of Tabriz, Iran, Tuesday, May 21, 2024. Mourners in black began gathering Tuesday for days of funerals and processions for Iran's late president, foreign minister and others killed in a helicopter crash, a government-led series of ceremonies aimed at both honoring the dead and projecting strength in an unsettled Middle East. (Ata Dadashi, Fars News Agency via AP)
![Ata Dadashi In this photo provided by Fars News Agency, mourners try to touch the coffins of Iranian President Ebrahim Raisi, top, Foreign Minister Hossein Amirabdollahian, left, and Raisi's chief bodyguard Gen. Mehdi Mousavi, who were killed in a helicopter crash on Sunday in a mountainous region of the country's northwest, during a funeral ceremony at the city of Tabriz, Iran, Tuesday, May 21, 2024. Mourners in black began gathering Tuesday for days of funerals and processions for Iran's late president, foreign minister and others killed in a helicopter crash, a government-led series of ceremonies aimed at both honoring the dead and projecting strength in an unsettled Middle East. (Ata Dadashi, Fars News Agency via AP)](https://mapi.associatedpress.com/v2/items/1e7fc0214ac845619ac03cd4cf1f57b3/preview/preview.jpg?s=680x)
In this photo provided by Fars News Agency, mourners try to touch the coffins of Iranian President Ebrahim Raisi, top, Foreign Minister Hossein Amirabdollahian, left, and Raisi's chief bodyguard Gen. Mehdi Mousavi, who were killed in a helicopter crash on Sunday in a mountainous region of the country's northwest, during a funeral ceremony at the city of Tabriz, Iran, Tuesday, May 21, 2024. Mourners in black began gathering Tuesday for days of funerals and processions for Iran's late president, foreign minister and others killed in a helicopter crash, a government-led series of ceremonies aimed at both honoring the dead and projecting strength in an unsettled Middle East. (Ata Dadashi, Fars News Agency via AP)
![Ata Dadashi In this photo provided by Fars News Agency, mourners carry the flag-draped coffin of Iranian Foreign Minister Hossein Amirabdollahian, who was killed in a helicopter crash along with President Ebrahim Raisi on Sunday in a mountainous region of the country's northwest, during a funeral ceremony at the city of Tabriz, Iran, Tuesday, May 21, 2024. Mourners in black began gathering Tuesday for days of funerals and processions for Iran's late president, foreign minister and others killed in a helicopter crash, a government-led series of ceremonies aimed at both honoring the dead and projecting strength in an unsettled Middle East. (Ata Dadashi, Fars News Agency via AP)](https://mapi.associatedpress.com/v2/items/8ed56de21d1e4b098de60b4dd9eedf30/preview/preview.jpg?s=680x)
In this photo provided by Fars News Agency, mourners carry the flag-draped coffin of Iranian Foreign Minister Hossein Amirabdollahian, who was killed in a helicopter crash along with President Ebrahim Raisi on Sunday in a mountainous region of the country's northwest, during a funeral ceremony at the city of Tabriz, Iran, Tuesday, May 21, 2024. Mourners in black began gathering Tuesday for days of funerals and processions for Iran's late president, foreign minister and others killed in a helicopter crash, a government-led series of ceremonies aimed at both honoring the dead and projecting strength in an unsettled Middle East. (Ata Dadashi, Fars News Agency via AP)
![Vahid Salemi FILE - Head of Iran's atomic energy department Mohammad Eslami waves to media at the conclusion of his joint press conference with International Atomic Energy Organization, IAEA, Director General Rafael Mariano Grossi, left, after their meeting in the central city of Isfahan, Iran, on May 7, 2024. While Iran's nuclear program stands at the precipice of tipping over into enriching uranium at weapons-grade levels, Tehran has held quiet, indirect talks with the United States and invited the head of the United Nations' atomic watchdog into the country for negotiations. (AP Photo/Vahid Salemi)](https://mapi.associatedpress.com/v2/items/5a6f39c035ba439085b37c7c274ee488/preview/preview.jpg?s=680x)
FILE - Head of Iran's atomic energy department Mohammad Eslami waves to media at the conclusion of his joint press conference with International Atomic Energy Organization, IAEA, Director General Rafael Mariano Grossi, left, after their meeting in the central city of Isfahan, Iran, on May 7, 2024. While Iran's nuclear program stands at the precipice of tipping over into enriching uranium at weapons-grade levels, Tehran has held quiet, indirect talks with the United States and invited the head of the United Nations' atomic watchdog into the country for negotiations. (AP Photo/Vahid Salemi)