U.S. home prices continued their rise in March, with growth in big cities accelerating, said a report on Tuesday.

According to a report released by S&P Dow Jones Indices Tuesday, the S&P CoreLogic Case-Shiller U.S. National Home Price NSA Index reported a 6.5-percent annual gain in March, the same as the previous month.

The 10-City Composite annual increase came in at 6.5 percent, up from 6.4 percent in the previous month. The 20-City Composite posted a 6.8 percent year-over-year gain, no change from the previous month.

Seattle, Las Vegas, and San Francisco continue to report the highest year-over-year gains among the 20 cities. In March, Seattle led the way with a 13.0 percent year-over-year price increase, followed by Las Vegas with a 12.4-percent increase and San Francisco with an 11.3-percent increase.

Twelve of the 20 cities reported greater price increases in the year ending March 2018 versus the year ending February 2018, the report said.

After seasonal adjustment, the National Index recorded a 0.4-percent month-over-month increase in March. The 10-City and 20-City Composites posted 0.4 percent and 0.5 percent month-over-month increases, respectively.

"The home price increases continue with the National Index rising at 6.5 percent per year," said David M. Blitzer, Managing Director and Chairman of the Index Committee at S&P Dow Jones Indices.

"Looking across various national statistics on sales of new or existing homes, permits for new construction, and financing terms, two figures that stand out are rapidly rising home prices and low inventories of existing homes for sale," said Blitzer.