Fitch confirmed the 'AA-' rating for the United Kingdom, cutting the outlook from stable to negative a few days after a similar choice by the S&P agency.
The decision to lower the outlook for the UK government's debt rating comes after new Prime Minister Liz Truss announced a drastic program of debt-fueled tax cuts.
"The large, unfunded fiscal package announced as part of the new government's growth plan could lead to a significant increase in fiscal deficits over the medium term," Fitch said in a statement.