U.S. officials promised Mexico no "mass deportations" or use of military force to expel immigrants, moving to calm tensions over President Donald Trump's vow to crack down on "bad dudes" illegally residing in his country.

U.S. Homeland Security Secretary John Kelly and Secretary of State Rex Tillerson met with Mexican ministers who expressed "concern and irritation" over Trump's combative stance on trade and migration ties with Mexico.

President Donald Trump on Wednesday dismissed talk of a Russian connection as "non-sense," two days after the resignation of his national security adviser Michael Flynn renewed questions about Moscow interference in U.S. politics.

"This Russian connection non-sense is merely an attempt to cover-up the many mistakes made in Hillary Clinton's losing campaign," Trump said in an early morning post on Twitter.

Fighting subsided around a flashpoint Ukrainian town on Sunday following a week-long surge in violence that prompted U.S. President Donald Trump to pledge to help bring peace to Europe's backyard.

Japan's public pension fund on Thursday denied a report it will invest in US infrastructure as part of Prime Minister Shinzo Abe's expected offer to President Donald Trump to help boost US employment.

The leading business daily Nikkei said, without citing sources, that the Government Pension Investment Fund (GPIF), the world's largest, will buy debt issued by US companies in order to fund the vast spending programme.

Ambiguity reigned Sunday as to the finer details of Donald Trump's temporary ban on incoming refugees and travelers from seven Muslim countries, with questions remaining about how exactly the measures affect various populations.

The order initially took many travelers by surprise, especially those already aboard airplanes en route to the United States as the president signed the measure into force on Friday afternoon.

Tensions between Donald Trump and Mexico's Enrique Pena Nieto over the U.S. leader's vow to make Mexico fund a new wall on the neighbors' border boiled over Thursday with the cancellation of talks in Washington set for next week.

Trump had been scheduled to receive Pena Nieto at the White House on Tuesday, for their first meeting since the inauguration. Instead, the Republican president is managing a foreign policy spat during his first week in office.

Prospective US Secretary of State Rex Tillerson better watch his mouth, angry Chinese media said Friday, warning Donald Trump's nominee that his threats to block China in the South China Sea are fighting words.

U.S. President Barack Obama Tuesday issued a warning against "crude" nationalism following Donald Trump's shock election win as he visited Europe on a mission to reassure jittery allies.

Obama, making his last foreign trip as president, said the NATO alliance was "absolutely vital" to U.S. interests and stressed a strong, unified Europe was good for America, after Trump, on the campaign trail, appeared to play down the importance of transatlantic ties.

Donald Trump said Friday he had a "busy day" planned as the Republican president-elect -- confronted with the magnitude of the task ahead -- begins building his administration before entering the White House in 70 days.

Trump's challenge in unifying a restless nation after the most divisive campaign in memory was immediately put under pressure by thousands of angry protesters who took to the streets of U.S. cities for a second straight night.

Wall Street stocks jumped more than 2 percent Monday as global markets rallied after the FBI cleared U.S. presidential candidate Hillary Clinton in an email probe.

Analysts described the gains as a relief rally in the final session before the U.S. vote Tuesday, on the presumption the FBI's announcement Sunday boosted the odds for Democrat Clinton, a clear favorite of investors over Republican Donald Trump.