WASHINGTON - President Donald Trump tweeted his defense Sunday of his order temporarily banning immigration to the United States for refugees and some Muslim travelers -- a controversial policy which has sparked international furor and two days of US protests.

"Our country needs strong borders and extreme vetting, NOW. Look what is happening all over Europe and, indeed, the world - a horrible mess!" Trump wrote.

US airports and other sites across the United States, including the White House, were expected to see a second wave of protests Sunday against Trump's temporary immigration ban, which a federal judge partially blocked by ordering authorities not to deport detained refugees and other travelers. The ruling also coincided with a wave of anger and concern abroad, including among US allies.

A second Trump tweet took aim at a favorite whipping boy, the New York Times, which has ramped up its political coverage and toughened its tone as his presidency got underway just over a week ago. "Somebody with aptitude and conviction should buy the FAKE NEWS and failing @nytimes and either run it correctly or let it fold with dignity!"