In other news
US stocks have fallen in opening trade after Greek voters rejected a creditor austerity package, throwing Greece and the eurozone into turmoil.
While world markets tremble at the decision by Greek voters to reject conditions of a rescue deal from creditors, the Argentine president boldly welcomes the referendum result.
British engineer Rolls-Royce has cut profit expectations for the third time in nine months, increasing the challenge for its new chief executive.
Oil prices have plunged as investors digested the implications of Greece rejecting austerity demands from creditors that could send the nation crashing out of the eurozone.
Chinese stocks have risen after Beijing unleashed an unprecedented series of support measures to stave off the prospect of a full-blown crash.
Asian equities have fallen after Greece rejected further austerity measures, while Shanghai underwent another day of volatility.
Russia hopes Greece will reach a deal with its international creditors as soon as possible, says a Kremlin spokesperson.
Move over selfie, India is embracing the "velfie" with Bollywood stars, sporting heroes and even politicians taking and posting videos of themselves online.