The President-elect Donald Trump said he will deport as many as three million undocumented immigrants and build a wall on the Mexican border after he takes office.

Donald Trump made this statement in  an interview on CBS's 60 Minutes program

"What we are going to do is  to 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 an excerpt released by CBS's 60 Minutes program.

 But we’re getting them out of our country, they’re here illegally. After the border is secure and after everything gets normalised, 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 gonna make a determination at that. But before we make that determination, it’s very important, we are going to secure our border."

The billionaire real estate baron made security at the US-Mexico border a central plank of his insurgent presidential campaign, which resulted in last Tuesday's shock election victory against his Democratic rival Hillary Clinton.

Trump added that the barrier to be erected on the US border with Mexico may not consist entirely of brick and mortar, but that fencing could be used in some areas

."There could be some fencing," Trump says in his first primetime interview since being elected president last week. 

But for certain areas, a wall is more appropriate. I'm very good at this, it's called construction," he tells CBS.