Economic powerhouses Germany and China warned Greece on Thursday against reneging on reforms tied to its massive international bailout, with markets still jittery over fears Athens could default on its debt.

Germany, which has shouldered most of the multi-billion-euro EU rescue plan for Greece, said the country's new anti-austerity government could not make changes "to the detriment" of other European citizens.

Bank of England governor Mark Carney has warned that the eurozone faces "another lost decade", urging more solidarity in what is being seen as a thinly-veiled reprimand to Germany after elections in Greece.

Carney started off his speech in Dublin late on Wednesday saying he intended "to reflect on how the euro area could act to avoid another lost decade".

Deutsche Bank, Germany's biggest lender, said Thursday that its net profit for 2014 more than doubled from the previous year, to a better-than-expected 1.7 billion euros ($1.9 billion).

The bank's bosses, who introduced a drive to reduce costs and boost profitability when they took over in 2012, said they were "encouraged" by the group's results but would not take their foot off the pedal.

Energy group Royal Dutch Shell on Thursday announced an eight-percent drop in annual net profits owing to a slump in global oil prices and said it would accelerate spending cuts.

Profit after tax dropped to $15.05 billion (13.3 billion euros) in 2014 compared with the Anglo-Dutch company's performance one year earlier, dragged down by plunging earnings in the fourth quarter as the cost of crude tumbled.

New Greek Prime Minister Alexis Tsipras is in a similar position to Phaeton, the Greek mythological figure given the reins of the sun only to lose control and nearly destroy the earth, Chinese media said Thursday.

The comments came after the newly-elected authorities in Athens said they would halt the privatization of Greece's biggest port, which China's COSCO group has bid for.

The Iraqi government and Royal Dutch Shell signed Wednesday an agreement in principle potentially worth $11 billion (9.6 billion euros) to build a large petrochemicals plant in the country's south.

"The deal is huge and the plant should be operational in five years," oil ministry spokesman Assem Jihad told AFP.

The Federal Reserve on Wednesday said it would remain "patient" on raising ultra-low interest rates as the economy posts "solid" growth.

Wrapping up a two-day monetary policy meeting, the Federal Open Market Committee left unchanged the key federal funds rate near zero, where it has been pegged since late 2008, as widely expected.

American Express said Wednesday that it plans to launch services for its credit card users in Cuba, after Washington and Havana agreed to establish relations following a half-century feeze.

Moving in the steps of rival MasterCard, an American Express spokeswoman said the company had plans to begin business activities in Cuba, "consistent with the president's announced policy change," though no specific date for a launch is set.

Russia on Wednesday unveiled an anti-crisis plan for an economy battered by low oil prices and sanctions, promising some spending cuts but also boosts for retirees and billions of dollars worth of support for top banks.

The plan, published on the government's website on Wednesday morning, foresees 10 percent reduction in "most categories of budget spending" but, increases on welfare, which was the cornerstone of Putin's election campaign in 2012.

Qatar looked to have won a drawn-out bid to buy London's Canary Wharf on Wednesday after the owner of the landmark office quarter said its main shareholders favored a sale.

The board of Songbird, which controls 69 percent of Canary Wharf Group, appeared to concede defeat despite stressing that the offer worth £2.6 billion ($4.0 billion, 3.5 billion euros) remained undervalued.