U.S. consumer prices accelerated in August as the cost of gasoline rebounded after two straight monthly declines. The Consumer Price Index increased 0.4% last month after edging up 0.1% in July.

The latest reading marks a notable pickup from the prior month and comes amid ongoing scrutiny of price pressures across the economy. Gasoline prices, a key component in the index, reversed recent declines and contributed to the broader increase.

Financial markets responded by strengthening bets on potential Federal Reserve action. Traders now see a higher likelihood of interest rate hikes in the months ahead as policymakers weigh the fresh inflation data.

The Consumer Price Index serves as the government's primary gauge of inflation trends affecting American households. August's results follow a period of relatively contained price growth in July.