Ali Akbar Ahmadian was appointed Supreme National Security Council (SNSC) secretary in Iran, replacing Ali Shamkhani who had held the influential post since September 2013. Since his resignation as SNSC secretary, Shamkhani has been appointed a political adviser to Supreme Leader Ali Khamenei.
Iran appears to have test-fired an updated version of its Khorramshahr ballistic missile, called the Khorramshahr-4. Officials said the missile had a range of 2,000km with a warhead of 1,500kg, which suggests it has been optimised to target Israel.
Iran freed Belgian aid worker Olivier Vandecasteele in exchange for the release of Iranian diplomat Assadollah Assadi from jail in Belgium, in a deal arranged by Oman. The two men first travelled to Muscat before heading on to their respective home countries.
Iran has appointed Alireza Enayati as its ambassador to Saudi Arabia, following the China-brokered rapprochement between the two Gulf powers in March. Enayati previously served as ambassador to Kuwait, from 2014 to 2019.
Iran released Frenchman Benjamin Briere and French/Irish national Bernard Phelan from prison, describing it as a goodwill gesture. But it executed Swedish-Iranian national Habib Chaab, drawing condemnation from the EU.
Iran could soon extend its burgeoning defence ties with Russia by providing fast attack craft for Russian naval forces to use in the Black Sea.
Iran's Labour Ministry director for social insurance Sajjad Padam was dismissed from his post after saying that the government "may have to sell off Kish and Qeshm islands and even oil assets in Khuzestan" in order to settle the country’s debts with China.
Iraq has extended a contract to import Iranian gas by a further five years, following talks in Baghdad between Iraqi Prime Minister Mohammed Al-Sudani and visiting Iranian oil minister Javad Owji in May.
Iraq has been hosting reconciliation talks between Iranian and Egyptian officials which should lead to the reestablishment of diplomatic relations "in the near future".
Iran officially welcomed Syria’s return to the League of Arab States, but the eagerness with which Damascus is accepting the renewed Arab hospitality may be a cause for concern in Tehran, which has been one of the Assad regime’s few consistent supporters throughout the civil war.
The attack on Iranian Assembly of Experts (Majles-e Khobregân-e Rahbari) member Ayatollah Abbas Ali Soleimani Esbukolai late April brought to the fore the question of who might lead Iran in the future.
The Iranian parliament voted to impeach industry, mine and trade minister Reza Fatemi Amin late April, a few weeks after education minister Yousef Nouri had resigned.
The Islamic Republic has largely suppressed the wave of protests that emerged in September after the death in custody of Mahsa Amini, but the opaque political system remains under pressure, both from the Iranian public and from signs of internal division. The tensions point to a period of uncertainty ahead of the eventual succession to Supreme Leader Ayatollah Ali Khamene.
Iran - which has substantial ammunition production capability as a legacy of its 1980-88 war with Iraq - is reportedly sending ammunition to Russia across the Caspian Sea for use in its Ukraine war.
Turkey has agreed to host an Iranian interests section at its embassy in Tirana, some eight months after Tehran and Albania broke off diplomatic relations.