Ratings agency Fitch on Friday maintained Britain's long-time AA debt rating, but warned of risks connected to a potentially difficult Brexit transition. Concerns are mounting that Britain will exit the European Union in March without a deal in place with Brussels, an outcome widely seen as a worst-case scenario that would have a disastrous impact on the economy.
"In Fitch's view, an intensification of political divisions within the UK, about both the aspects of the UK's withdrawal from the EU and the framework for future EU-UK relations, has impeded progress in the Brexit negotiations and increased the likelihood of an acrimonious and disruptive 'no deal' Brexit," it said.
"Such an outcome would substantially disrupt customs, trade and economic activity, and has led Fitch to abandon its base case on which the ratings were previously predicated."
"Uncertainty around the Brexit process is weighing on economic growth prospects, in our view," Fitch said, adding that Britain's GDP could fall to 1.3 percent from 2017's 1.7 percent.
S&P Global Ratings meanwhile maintained its AA rating for Britain's sovereign debt, along with a negative outlook.