Chancellor George Osborne will issue a warning on the need for the European Union to reform during a keynote address later today.
The Chancellor will stress the Conservatives' determination to renegotiate the terms of Britain's membership, declaring "We can't go on like this." Addressing a conference on EU reform, he will say:
"The biggest economic risk facing Europe doesn't come from those who want reform and renegotiation - it comes from a failure to reform and renegotiate.
"It is the status quo which condemns the people of Europe to an ongoing economic crisis and continuing decline. And so there is a simple choice for Europe: reform or decline.
"Our determination is clear: to deliver the reform, and then let the people decide."
More top news
Donald Trump has wasted no time making his mark on international matters as well as domestic. So how will his presidency affect the world?
Another cold, frosty and foggy night for many. Northern and western areas will see thickening cloud, patchy rain and milder temperatures.
Temperatures have already plunged to -12C in some parts of the UK this winter - but Thursday could be the coldest day yet.