The dollar extended gains against its peers in Asian trade Wednesday as investors await a key Federal Reserve decision later in the day, but most equity markets dipped.

Bitcoin, the star of the cryptocurrency world, is widely seen as a freewheeling tool as open as the internet itself.

European stocks markets faltered Tuesday as initial optimism faded over U.S. President Donald Trump's historic summit with North Korean leader Kim Jong Un, dealers said.

After months of sharp oil price rises there is now considerable uncertainty as to the market's direction for the rest of the year, OPEC said on Tuesday as a key meeting of oil producers looms.

Turkey's economy grew by a higher-than-expected 7.4 percent in the first three months of 2018 compared to the same period last year, official statistics showed on Monday.

The figure, released just two weeks ahead of a national election, beat the consensus market forecast of 7.0 percent growth.

Morocco and Nigeria have agreed a cooperation plan to press on with a proposed pipeline transporting gas to the North African kingdom along the Atlantic coast. 

Saudi Arabia, the United Arab Emirates and Kuwait have offered $2.5 billion in aid for Jordan to ease its economic crisis following a wave of anti-austerity protests, the Saudi state media announced early Monday.

Jordan has been rocked in recent days by mass protests against price rises and a proposed tax hike as the government pushes measures to slash the country's debt, leading to the prime minister's resignation.

Asian markets fluctuated Monday after the Group of Seven meeting ended with deep divisions between the US and its allies, while investors are looking ahead to Donald Trump's summit with North Korean leader Kim Jong Un.

The G7 summit ended in farce and a renewed threat of global trade war as U.S. President Donald Trump abruptly rejected the text of a consensus statement and bitterly insulted the Canadian host.

Just minutes after a joint communique Saturday that had been approved by the leaders of the Group of Seven allies was published in Canada's summit host city Quebec, Trump launched a Twitter broadside from aboard Air Force One.

France and Germany are "determined" to reach a compromise on President Emmanuel Macron's proposals for a shake-up of the eurozone, a French government source told AFP Sunday after marathon talks between the two countries.