Three sons of slain Iranian leader Ayatollah Ali Khamenei ​prayed beside his coffin and those of four other family members on Sunday, but Mojtaba, the son who succeeded him as Iran's supreme leader, did not make an appearance. State TV showed Mostafa, Meysam and Masoud Khamenei praying behind the coffins laid out in the vast courtyard of Tehran's Imam Khomeini Grand Mosalla, a sprawling religious complex. Their father, alongside several other members of the family, was killed in an ​air strike when the United ‌States and Israel launched a war on Iran on February 28. The conflict, which raged for several weeks before the sides reached a shaky ceasefire, has ⁠caused death and destruction across the region and left Iran's theocratic government, backed by the Islamic Revolutionary Guards Corps, in power. Read moreHezbollah, Hamas and Houthi officials attend funeral ceremonies for Iran's Khamenei In a show of public devotion to the state and revolutionary zeal, the Islamic Republic is staging a week of mass funeral processions for Khamenei, including taking ‌his remains to Shiite religious sites in neighbouring Iraq. After a day lying in state indoors for senior Iranian leaders and foreign officials to visit, Khamenei's coffin ⁠was displayed outdoors on Saturday under glass, along with those of his daughter, son-in-law, daughter-in-law and 14-month-old granddaughter.