British Prime Minister Liz Truss said Thursday she would stick to her controversial plan to reignite economic growth, breaking her silence after nearly a week of financial market chaos triggered by the government's push for huge tax cuts.

A day after the Bank of England resumed its bond-buying in an emergency move to protect pension funds from partial collapse, Truss blamed the upheaval on the Russian invasion of Ukraine, which has caused inflation to spike around the world.

"We had to take urgent action to get our economy growing, get Britain moving, and also deal with inflation — and of course, that means taking controversial and difficult decisions," she told BBC radio.