KEY POINTSU.K. Prime Minister Liz Truss will hold a news conference on Friday afternoon amid mounting speculation that the government is considering a tax cut U-turn.On a day of fast-moving developments, Truss fired Kwarteng after less than six weeks in the role.Truss is under immense pressure to rethink her economic policies as opinion polls show support for her government has collapsed.LONDON — U.K. Prime Minister Liz Truss will hold a news conference on Friday afternoon, shortly after firing Finance Minister Kwasi Kwarteng and amid mounting speculation the government is poised to U-turn on market-rocking tax cuts.On a day of fast-moving developments, Truss sacked Kwarteng just weeks after he announced unfunded spending plans that triggered economic turmoil.U.K. government bonds — known as gilts — rallied sharply ahead of the news conference. The long-dated 30-year yield briefly touched 4.261% during morning trade. Yields move inversely to prices. CNBC.com