Authorities identified the shooter as Nasire Best, a 21-year-old man.
During his Palm Sunday address, the pope condemned the Iran.
In January, the European Parliament put the deal on hold amid tensions over Mr Trump’s threat to annex Greenland.
On Monday, the U.S. President faced widespread criticism from Americans following an image depicting him as Jesus Christ.
“I like his brother Louis much better than I like him, because Louis is all MAGA. He gets it, and Leo doesn’t,” said Mr Trump.
Mr Trump said the blockade would begin shortly.
Mr Trump hoped China, France, Japan, South Korea, and the UK would send warships to keep the Strait of Hormuz open for global oil and gas transportation.
Israeli Prime Minister Benjamin Netanyahu had said there were many signs Mr Khamenei had been killed in the strikes targeted against his residence.
Mr Trump, who will chair the “Board of Peace,” wrote on Truth Social that the members’ names would be released soon.
The American president said “Save the names of the killers and abusers. They will pay a big price.”
