WASHINGTON (AP) — U.S. home prices rose 12.1 percent in June from a year earlier, nearly matching a seven-year high. But month-over-month price gains slowed in most markets, a sign that higher mortgage rates may weigh on the housing recovery.

The Standard &Poor’s/Case-Shiller 20-city home price index slowed only marginally from May’s year-over-year gain of 12.2 percent, the fastest since March 2006. And all 20 cities posted gains from the previous month and compared with a year ago, according to the report released Tuesday.