Donald Trump was indicted by a Manhattan grand jury on Thursday, becoming the first former U.S. president to face criminal charges.
It was not immediately clear what the indictment was connected to, or what charges Trump will face. The indictment is under seal.
Trump is expected to surrender in New York City early this week, sources familiar with the matter told ABC News.
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No other proceedings on 15th floor of courthouse while Trump is there: Official
There will be no other court proceedings on the 15th floor of the New York State Supreme Courthouse while Donald Trump is there for his arraignment, according to a court official.
A number of other state Supreme Court cases have been adjourned to limit the number of people in the courthouse during the former president’s appearance.
The streets around the building will be blocked off and traffic stopped during Trump's movements to and from the building.
Court security officers and the U.S. Secret Service will handle security inside and the immediate perimeter. The NYPD will contribute and also work a wider perimeter, handle traffic and monitor any protests.
-ABC News' Aaron Katersky
Trump to speak at Mar-a-Lago Tuesday night
Following his expected arraignment on Tuesday in New York City, former President Donald Trump announced he would speak that evening from Mar-a-Lago.
The former president is slated to give remarks at 8:15 p.m., according to a press release.
-ABC News' Olivia Rubin
America split on Trump indictment: Poll
While 45% of Americans believe former President Donald Trump should face charges in an investigation by the Manhattan District Attorney's Office, 32% say he shouldn't have been indicted, according to a new ABC News/Ipsos poll.
Another 23% of American say they don't know whether the nation's 45th president should face charges.
While the charges have not been announced, a Manhattan grand jury that indicted Trump had been hearing evidence in a $130,000 hush money payment Trump allegedly made to adult film actress Stormy Daniels, who claims they had an affair. Trump has denied the allegations.
The poll showed a split in opinions along party lines. While 88% of Democrats said Trump should face charges, 62%, of Republicans said the former president should not have been charged while 16% said he should be charged, and the remainder was uncertain.
About 47% of Americans polled say the charges are politically motivated, echoing the sentiment from top GOP figures. About 79% of Republicans hold that view.
-ABC News' Brittany Shepherd
Trump's lawyer hopes his arraignment is 'typical' and quick
Trump's lawyer said on Sunday on ABC's "This Week" that he doesn't know what to expect when the former president is arraigned on Tuesday in New York City, given the historic nature of Trump's indictment.
"This is unprecedented. I don't know. I've done a million arraignments in that courthouse with celebrities and whatnot. But this is a whole different thing. We have Secret Service involved. I understand they're closing the courthouse for the afternoon. I just don't know what to expect to see," Joe Tacopina told "This Week" anchor George Stephanopoulos.
He likened the case to "persecution" and said the charges, which remain under seal, "revolved around" Trump paying money to adult film actress Stormy Daniels before the 2016 election to keep her from going public with a claim of an affair that Trump denies.
He told Stephanopoulos that he didn't know whether Trump would hold a press conference on Tuesday after he is arraigned.
"What I hope is that we get in and out of there as quickly as possible, that it's, at the end of the day, a typical arraignment," he said.
-ABC News' Tal Axelrod