The US Federal Reserve has raised interest rates by 0.25 percentage points - its first increase since 2006. The move takes the range of rates banks offer to lend to each other overnight - the Federal Funds rate - to between 0.25% and 0.5%.
The US Federal Reserve has cut its growth forecast for 2014 because of the harsh winter weather. The central bank is now predicting growth of between 2.1% and 2.3% for this year, down from its March forecast of 2.8% to 3%. However in its accompanying statement, the bank said that economic activity had "rebounded in recent months".
Facebook has bought messaging app WhatsApp in a deal worth a total of $19bn (£11.4bn) in cash and shares. It is the social networking giant's biggest acquisition to date.
Russia's unmanned Luna-25 spacecraft has crashed into the Moon after spinning out of control, officials say.
Donald Trump has confirmed that he will not take part in Republican presidential debates with his rivals in the race for the White House.