The unannounced trip sent a strong signal to his oil-rich Saudi ally as Riyadh comes under near-daily attack.
Macron estimated that some 60,000 law enforcement personnel had been deployed across the country.
The World Food Programme said its efforts had mitigated the effects during a famine last year in Gaza
People in the square welcomed the pope's speedy return.
The Saudi-led coalition backing the internationally recognised government has launched repeated air raids on Houthi territory.
Leo, 71, has been at the Gemelli hospital north of the Vatican since Tuesday, where doctors removed part of his right lung to extract a cancerous tumour.
A company spokesperson told AFP that the proposal "grants the federal government the ability to block or deter dangerous deployments of the most powerful models."
President Trump fires White House Press Secretary Katie Zacharia after just five days in the role, following scrutiny over her legal credentials, officials confirm.
Zelensky infuriated Trump further by ordering Ukraine's forces to restart strikes on Russian oil refineries in defiance of Washington's demands.
"The parents of all these children must receive justice," tailor Muhammad Wahab, who lost his 11-year-old nephew Hammad in the accident, told AFP on Friday.
Officers rushed to Silver Rail Elementary in Bend, a city of about 100,000 in the nation's northwest, after reports of a shooter on campus on Thursday afternoon.
"I want to see Pope Leo get well," Trump told reporters after addressing a campaign rally in Arizona. "It's big stuff. Anytime you have cancer, but the prognosis seems to be good."