Mourners in Iran have been seen setting fire to British and American flags and hurling rocks at images of Donald Trump as millions gathered on Monday for the funeral procession of late Supreme Leader Ali Khamenei.Among the crowds were also posters bearing the faces of Trump, Pete Hegseth, JD Vance and Benjamin Netanyahu, each marked with crosshairs, as hundreds of thousands lined the streets for the procession.Banners with the phrase 'Kill Trump' lined the streets, with mourners kicking and hurling rocks at photos of the US President.Iranian leaders joined prayers over the casket of the late supreme leader during Sunday's funeral ceremonies, but his son and successor Mojtaba Khamenei was conspicuously absent.The elder Khamenei ruled the Islamic republic from 1989 until he was killed aged 86 in an airstrike on the first day of the US-Israeli war with Iran on February 28.Officials including President Masoud Pezeshkian and Revolutionary Guards chief Ahmad Vahidi joined Sunday's ceremonies, along with huge crowds paying their final respects in Tehran.But Mojtaba has not appeared in public since his appointment in early March. He is said to have been wounded in the attack that killed his father. The late supreme leader's other three sons, Masoud, Mostafa and Meysam, all attended the service.Vast crowds gathered for the funeral procession in Tehran on Monday, with authorities estimating millions were on the streets in numbers that could rival those of his predecessor's farewell nearly four decades ago. Iranians torch Brit and US flags at the funeral procession for Ali Khamenei Among the crowds were also posters bearing the faces of Trump, Pete Hegseth , JD Vance and Benjamin Netanyahu , each marked with crosshairs A man holds a sign reading 'kill_trump' as mourners gather for funeral ceremonies A mourner kicks a wanted banner of US President Donald Trump as people pay their respects at the Grand MosallaThe ceremonies offer Iran an opportunity to project resilience after five weeks of war with the United States and Israel.After lying in state for two days at Tehran's Grand Mosalla religious complex, the body of Khamenei - who was killed on the first day of the Middle East war on February 28 - began its journey through the capital accompanied by massive crowds.Authorities are hoping to avoid a repeat of the chaos that marred the 1989 funeral of Khamenei's predecessor Ayatollah Ruhollah Khomeini, which drew an estimated 10 million people, according to state news agency IRNA.Crowd surges during Khomeini's farewell killed more than 10 people and injured over 10,000.'If I am to compare this ceremony to that one, I can say they are not different at all. But the crowd this time seems more enthusiastic,' said Gholamreza Khanbabaei, 58, attending the procession.Tehran's airspace was closed on Monday as the country stood still to remember the former leader.Mourners marched through the streets waving the flags of Iran and the Tehran-backed Lebanese militant group Hezbollah, as well as red flags symbolising revenge.Others gathered in Imam Hussein Square in eastern Tehran and hanged an effigy of US President Donald Trump, according to state media.Former president Mahmoud Ahmadinejad was seen attending the procession, according to local media.In sweltering heat, trucks sprayed mourners with water to cool them, while organisers handed out Iranian flags and pictures of Ali and Mojtaba.A day earlier, thousands had filled the Grand Mosalla to pay their respects to Khamenei and four family members killed in the Israeli airstrikes, which were based on US intelligence.Massive concrete walls at the complex separated the public from the coffin to prevent stampedes.Monday's procession will be followed by similar events in the clerical hub of Qom on Tuesday and in Iraq's holy cities of Najaf and Karbala on Wednesday, culminating in Khamenei's burial in his hometown of Mashhad in northeastern Iran on Thursday.Three of Ali Khamenei's sons made a rare public appearance at the funeral on Sunday, further highlighting the absence of Mojtaba, who was named supreme leader shortly after his father's killing but has yet to appear in public.Officials have said he was wounded in the airstrikes but the severity of his injuries remains unclear.The new commander of Iran's powerful Revolutionary Guards, Ahmad Vahidi, whose predecessor was killed on February 28, also appeared at the funerals for a second time on Sunday, on this occasion in the open air, after he went unseen throughout the war. Banners with the phrase 'Kill Trump' lines the streets, with mourners kicking and hurling rocks at photos of the US President. Security personnel stand atop a truck as it makes its way through mourners Millions of people gather in the streets of Tehran, Iran, to attend the farewell ceremony for Iran's former Supreme Leader Ali Khamenei Iranian leaders joined prayers over the casket of the late supreme leaderEsmail Qaani, the shadowy head of the Guards' Quds Force - responsible for its foreign operations - also made a rare appearance.The government is eager to tout the mass mobilisation in support of the authorities after mass protests took place in January that rights groups say were quelled by a crackdown that killed thousands of people. The Middle East war is on hold following a ceasefire and an initial accord struck with the US. But both Washington and Tehran have warned they are ready to resume military action, and vengeance has been a major theme at the funeral.Khamenei long pursued a course of confrontation with the West, and Tehran for years has provided support to anti-US and anti-Israel armed groups around the Middle East, including Palestinian Hamas and Lebanon's Hezbollah, who both sent delegations to the ceremonies.Some of Khamenei's supporters at Monday's procession echoed that message of confrontation.'We want revenge. It must be done. Because later, if it's not done, it will get worse,' said Khanbabaei.