Britain's Brexit vote has put Wales's EU funding in doubt, dealing a potentially heavy financial blow to one of Britain's poorest regions which relies on money from Brussels for farmers' subsidies and urban regeneration.

"Wales are in a bit of trouble, we get a lot of money from the EU," said Anna Preece, shocked by the referendum vote to quit the European Union.

Eurozone unemployment fell to a near five-year low in May, official data said on Friday, in a rare positive sign for a sluggish European economy struggling to return to solid growth.

Oil prices were on their way back down in European markets on Friday morning as a stronger dollar and uncertainty over Britain's vote to leave the EU troubled traders.

North Sea Brent crude for delivery in September was down to $49.33 per barrel at around 1030 GMT, down 13 cents on Thursday's close.

The pound edged up on Friday after tumbling in US trade following hints from the head of the Bank of England that it was ready to cut interest rates to stem fallout from Britain's decision to quit the European Union.

A week after the unexpected Brexit vote, Mark Carney sought to reassure anxious investors that Threadneedle Street would step into financial markets.

Russian President Vladimir Putin on Thursday warned that the fallout from Britain's vote to leave the European Union would last a long time.

France added to its debt pile in the first quarter, official data showed Thursday, taking the country further away from meeting eurozone debt criteria.

A top Singapore bank said Thursday it has suspended loans to anyone wanting to buy property in London, citing uncertainty from Britain's vote to quit the EU but dealing a blow to investors looking to make the most of the weak pound.

Oil prices fell in Asia on Thursday as supply outlook improved with both commodities hovering close to the key $50 mark, worrying traders about producers coming back online.

Crude dipped after two days of strong gains which saw the commodity soar past the benchmark that makes financial sense for producers to restart production.

US President Barack Obama said Wednesday he is "confident" that Britain's vote to leave the European Union will not harm the the global financial system, as markets rebounded from post-Brexit losses.

"Given the vote of the United Kingdom to leave the European Union, our economic teams are going to continue to work together so that we remain focused on keeping our economies growing and making sure that the global financial system is stable, something I am confident that we can do," Obama said at a summit with his Canadian and Mexican counterparts in Ottawa.

Iraq secured a deal Wednesday for a $2.7 billion US loan to finance the buying of ammunition and maintenance of tanks and fighters used in the fight against the Islamic State group.