US annual inflation rose to 3.7% in September as gasoline prices jumped 9.1%, lifting the monthly CPI increase to 0.6%

U.S. consumer inflation accelerated in September, with the annual rate reaching 3.7% as energy costs—particularly gasoline—drove a sharper monthly increase, according to official data. The annual rate was up from 3.4% in August and exceeded market expectations of 3.6%.