Trump plans to immediately deport or jail 2 to 3 million immigrants living in country illegally

President-elect Donald Trump told "60 Minutes" in an interview set to air Sunday night that he plans to come through on one of his earliest campaign promises and deport or jail 2 to 3 million immigrants living in the country illegally upon taking office.

"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 two million, it could be even three million, we are getting them out of our country or we are going to incarcerate," Trump said in the interview, according to a preview released by CBS.

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

However, Trump seemed to soften his rhetoric on the treatment of the other millions of immigrants living in the US illegally, saying he would decide what to do with them after securing the US-Mexico border.

"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," he said. "But before we make that determination ... it's very important, we are going to secure our border."

Trump also seemed to tone down his plan to secure the US's southern border with a wall by telling "60 Minutes" that the wall would include "some fencing."

President Barack Obama, from 2009 to 2014, deported 2.5 million immigrants living in the country illegally, according to government data, substantially more than George W. Bush did in his eight years in office.