Asian shares slipped on Tuesday as stringent curbs on travel to the United States ordered by President Donald Trump brought home to investors that he is serious about carrying out his controversial campaign pledges.

Global stocks posted their biggest loss in six weeks on Monday after Trump signed an executive order to bar Syrian refugees indefinitely and suspend travel to the United States from seven Muslim-majority countries, sparking widespread protests.

European bourse are expected to remain fragile after big losses on Monday, with spread-betters seeing opening losses of as much as 0.1 per cent in major indexes, including Britain’s FTSE, Germany’s DAX and France’s CAC.

"Investors are becoming worried as it appears as if he was setting fire to geopolitical risks that already exist," said Yoshinori Shigemi, global market strategist at JPMorgan Asset Management.

Trump’s move drew criticism from some US policymakers, and business leaders, with technology companies, which depend on talent from around the world, planning to discuss a legal challenge.

"His stance is really inward-looking, making investors nervous about his ’moderateness’," said Masahiro Ichikawa, senior strategist at Sumitomo Mitsui Asset Management.

MSCI’s broadest index of Asia-Pacific shares outside Japan fell 0.5 per cent while Japan’s Nikkei dropped 1.7 per cent, its biggest fall in almost three months.

On Monday, the US S&P 500 Index fell 0.6 per cent, its biggest fall in a month, though it remained well above levels seen before the November 8 presidential election.

MSCI’s gauge of the world’s 46 stock markets shed 0.6 per cent, its largest loss in a month and a half.

The mood soured further when Trump fired the federal government’s top lawyer after she took the extraordinarily rare step of defying the White House.

US stock futures ESc1 shed 0.3 per cent on Tuesday and the dollar extended losses against the yen.

Still, most share prices were up on the month, supported by signs of accelerating momentum in the global economy and hopes of large fiscal stimulus from Trump.

MSCI’s ex-Japan Asian shares index was up 5.7 per cent this month while its index of world markets was up 2.5 per cent. They were also higher than their levels before the US elections.

In the currency market, the dollar was broadly weak and fell 0.3 per cent against the yen to 113.49 yen. It was down 3.1 per cent so far this month, after three straight months of sizable gains.

The Japanese currency showed no reaction after the Bank of Japan kept its policy on hold, as expected. A string of recent data has suggested the economy is slowly regaining traction.

The euro edged up to US$1.0710, consolidating after its rebound this month from its 14-year low of $1.0340 set on January 3.

In a possible sign of increased anxiety among investors, the safe-haven Swiss franc strengthened to a seven-month high of 1.0637 franc per euro on Monday.

Worries are also growing about a political shift to populist leaders in Europe.

French bond yields rose to the highest level since September 2015, on rising uncertainty over the Presidential election later this year.

Conservative leader Francois Fillon, seen as the front-runner, is now battling to contain a scandal over allegedly unlawful payments to his wife while the Socialists on Sunday picked a hard-left candidate, possibly helping popular far-right leader Marine Le Pen.

Italian debt yields climbed to 1 1/2-year highs partly as early elections could be called following a ruling from the country’s constitutional court last week.

Italian assets have also been hit by worries over its banking sector after UniCredit, the country’s biggest bank, revealed on Monday it expects to book a net loss of around 11.8 billion euros ($12.6 billion) for 2016 and fall short of European Central Bank capital requirements.

By contrast, the yield on German debt fell on Monday even as data showed inflation in Germany hit a 3 1/2-year high in January.

News that Germany posted a national inflation rate of 1.9 per cent stoked talk of an unwinding of monetary stimulus by the ECB, even though the inflation outcome was below expectations.

Elevated uncertainty about Trump’s policies, including a lack of detail so far on his plans for tax cuts and fiscal spending, offset optimism on the US economy.

Data on Monday showed US consumer spending accelerated in December while inflation showed some signs of picking up last month.

The core PCE price index, the Federal Reserve’s preferred inflation measure, rose 1.7 per cent on a year-on-year basis after a similar gain in November.

"We’ve seen a jump in US economic sentiment after Trump’s victory. But the improvement in hard economic data remains moderate," said Haruka Kazama, senior economist at Mizuho Research Institute.

"And if Trump takes more steps to limit permits for immigrants, that would surely boost inflation as the US is now near a full employment," she added.

The Federal Reserve, which will start its two-day policy meeting today, is widely expected to keep interest rates unchanged as it awaits greater clarity on Trump’s economic policies.

Oil prices dipped as rising US drilling activity offset efforts by OPEC and other producers to cut output in a move to prop up the market.

Brent crude futures LCOc1, the international benchmark for oil prices, were trading at $55.14 per barrel, down 0.2 per cent from Monday’s settlement price. — REUTERS