Prominent mourners at the funeral of former Iranian Supreme Leader Ayatollah Ali Khamenei vowed revenge against President Donald Trump, including calls for his assassination.

Revenge was a major theme of the massive funeral — the ayatollah was himself assassinated in U.S.-Israel strikes — which was attended by hundreds of thousands, including nearly every senior Iranian official. At one point, Mohammad Rasouli, a poet who served as the master of ceremonies before the prayers, openly called for Trump’s assassination over the loudspeakers, according to the Associated Press.