Pope Francis funeral updates: Pope Francis laid to rest after historic funeral in front of 250,000

Even as President Donald Trump attends Pope Francis' funeral, the two men clashed repeatedly, including as far back as Trump's 2016 presidential campaign, over how to treat migrants.

In 2016, Pope Francis criticized Trump over his pledge to build a wall along the U.S.-Mexico border.

"A person who thinks only about building walls, wherever they may be, and not building bridges, is not Christian," Pope Francis said while on a trip to Mexico. "This is not in the gospel."

Trump responded at the time that he was "proud to be a Christian" and that "no leader, especially a religious leader, should have the right to question another man's religion or faith." He also suggested the Mexican government had used him as a "pawn" and convinced him to make the remarks.

This year, one day before Trump was inaugurated for his second term, Pope Francis commented on his plan to carry out mass deportations.

"If it is true, it will be a disgrace, because it makes the poor wretches who have nothing pay the bill for the imbalance. It won't do. This is not the way to solve things," he said.

Pope Francis' coffin will be brought from St. Peter's Basilica to the front of the altar in the square.

Mourners were instructed to refrain from waving flags or banners during the procession.

President Donald Trump has arrived at St. Peter's Square alongside First Lady Melania Trump to pay their respects and say goodbye to Pope Francis.

Pres. Donald Donald Trump arrived with his wife, Melania. He is among more than 50 heads of state and other dignitaries attending the funeral of Pope Francis.

Former President Joe Biden and his wife, Jill, are also in attendance.

Donald Trump paid his respects to Pope Francis at his closed coffin inside St. Peter's Basilica before making his way outside to take his seat with many other world leaders and dignitaries.

World leaders and global dignitaries, along with tens of thousands of mourners, are arriving in St. Peter's Square as the funeral of Pope Francis is set to begin at 10 a.m. at the Vatican.

Heavy security can also be seen as thousands of Italian police and law enforcement are out in force Saturday morning, watching over the gathering crowds in advance of the start of the funeral.