'Unusually large' -Fed chair on interest rate hike

STORY: The rate hike was the biggest announced by the U.S. central bank since 1994, and was delivered after recent data showed little progress in its battle to control a sharp spike in prices.

U.S. central bank officials flagged a faster path of rate hikes to come as well, more closely aligning monetary policy with a rapid shift this week in financial market views of what it will take to bring price pressures under control.