Many European users are experiencing trouble connecting to the popular messaging network.
Downward pressure on the yuan will continue into 2016, presenting Beijing with fresh challenges in financial management.
Germany's DAX Index, which outperformed most of its global peers, ended a volatile year up nearly 9.6 percent. In 2016, the index is expected to gain 9.8 percent.
The news comes a day after police arrested two people for allegedly planning attacks in the Belgian capital on New Year's Eve.
Word of the investigation follows a report that the National Security Agency eavesdropped on Iran nuclear deal negotiations.
Can the most powerful car Cadillac has ever built change the automaker's image?
The leaders of Ukraine, Russia, France and Germany agreed to extend a peace deal into 2016 in the hopes of ending the conflict in Eastern Ukraine.
The country will sign the articles of agreement by tomorrow, to become the last of the bank’s 57 founding members.
Treacherous sea crossings have caused the deaths of nearly 4,000 people, with most refugees fleeing violence in the Middle East.
Suspects in the murder of Russian politician Boris Nemtsov were indicted Tuesday, but the court refused to categorize the murder as one against a public official.
The new year is likely to be a continuation of 2015, with further economic restrictions between Russia and Ukraine as Kiev looks toward the EU.
Moscow has called for the U.S. to back down with troops and weapons in Eastern Europe even as ceasefire violations continue in Eastern Ukraine.
"The West, first of all the United States, has made this monster bigger by their wars," opposition member Sahra Wagenknecht said.
A German entrepreneur has launched an experiment to test the effects of universal basic income in Germany, using crowdfunded donations.
Economists differed on the net positive or net negative effects of the interest-rate hike on eurozone economies.
German Finance Minister Wolfgang Schaeuble said German courts decided refugees were not being treated humanely in Greece and could not be sent back.
Russia says the Afghan Taliban is feeding it intelligence to use against the Islamic State group in Syria, and it could be shared with other countries.
The Asian Infrastructure Investment Bank, with China, India and Russia as its largest shareholders among its more than 50 members, was formally established in Beijing Friday.
Christmas remains a tradition that can cross cultural and national boundaries.
These trades have allegedly allowed investors to move money from one country to another in violation of sanctions placed on Russia after its annexation of Crimea.
The French defense minister is proposing that Moscow share intelligence to track French and Russian nationals in the Islamic State group.
In another year of highs and lows for social media, IBT highlights the best of Twitter in 2015.