President-elect Trump vows to immediately deport all criminal illegal immigrants

President-elect Donald Trump will begin tackling the problem of illegal immigration by deporting immigrants that have a criminal record, a number that Trump estimates to be two or three million.

Trump's comments came during a sit-down interview with CBS's "60 Minutes." The full interview is set to air Sunday.

"What we are going to do is get the people that are criminal and have criminal records, gang members, drug dealers, where a lot of these people, probably 2 million — it could be even 3 million — we are getting them out of our country or we are going to incarcerate,” Trump said.

"But we’re getting them out of our country," he added. "They’re here illegally."

Once the "criminals" have been deported, Trump said the southern U.S. border would be secured — with a wall — and then his administration would devise a plan to deal with the remaining illegal immigrants who haven't committed any crimes.

"After the border is secure and after everything gets normalized, we’re going to make a determination on the people that they’re talking about, who are terrific people — they’re terrific people, but we are going to make a determination at that," the president-elect said. "But before we make that determination ... it’s very important, we are going to secure our border."

Trump's promise to build a wall on the southern border and deport all of the illegal immigrants in the U.S. has been a promise central to his campaign — and one that he has maintained since launching his presidential bid in June 2015.

At times, he has wavered with the details, but Trump made it clear in his interview with CBS that he wants to follow through with his immigration promises.

Watch the preview clip below: