Ratings agency Moody's cut the United Kingdom's debt rating on Friday over the huge economic hit from the coronavirus crisis, Brexit and the lack of clear budget plans from Prime Minister Boris Johnson's government.

Moody's lowered the rating to "Aa3" from "Aa2," putting Britain on the same level as Belgium and the Czech Republic.

The world's sixth-biggest economy shrank by the most among Group of Seven nations in the second quarter and its public debt has topped 2 trillion pounds ($2.6 trillion), surpassing 100 percent of gross domestic product.

Moody's said Britain's growth had been "meaningfully weaker than expected and is likely to remain so in the future."

Britain faced a sharper peak-to-trough contraction than any other Group of 20 economy due to the severity of its COVID-19 outbreak, the size of its services sector, hammered by social-distancing rules, and the risk of further outbreaks, it said.

Moody's said Britain's failure to reach a broad trade deal with the EU would compound the damage caused by COVID-19.

Johnson said Friday there was no point in holding more talks without a dramatic softening of the EU's position, bringing a step closer the possibility that the planned divorce at the end of the year will end acrimoniously.

"Even if there is a trade deal between the UK and EU by the end of 2020, it will likely be narrow in scope," Moody's said.

It also said Britain has lost budgetary discipline and its high debt levels were unlikely to come down quickly.

"The UK effectively has no fiscal policy anchor," it said.

Spending cuts were likely to be politically difficult and tax increases could choke off the economic recovery.

Britain's government responded by saying it had no choice other than to ramp up spending to soften the pandemic's impact.

Moody's revised the outlook on the country's sovereign debt to "stable" from "negative." The downgrade puts the Moody's rating on the same level as Fitch's while Standard & Poor's rates the country one notch higher.

(With input from agencies)