In his first comments since a terror attack this week at a Christmas market in Germany which killed a dozen people, President-Elect Donald Trump told reporters it demonstrates the need to restrict Muslim immigration into the U.S. from certain areas of the world.

"You know my plans all along, I've been proven to be right, 100 percent correct," Mr. Trump said in between meetings at Mar-a-Lago, his Florida retreat in Palm Beach.

"What's happening is disgraceful," he told reporters.

"It's an attack on humanity, that's what it is. It's an attack on humanity. And it's got to be stopped," the President-Elect said.

In his short back-and-forth with reporters, Mr. Trump said he had not spoken with President Obama about the attack, saying the two men had been on the phone in recent days.

German police are now searching for a man from Tunisia as the prime suspect.