WASHINGTON-The Federal Reserve raised interest rates Wednesday for the first time in three years, a sharp reversal that began taking back cuts it made last year and implicitly undercut the White House's insistence that inflation isn't a concern.

The increase, approved unanimously, will raise the benchmark federal-funds rate range by a quarter point to between 3.75% and 4%. The vast majority of officials penciled in one more hike this year in interest-rate projections released after their meeting.