Home prices rise in most major U.S. cities

Home prices rose in March from February in most major U.S. cities for the first time in seven months. The increase is the latest evidence of a slow recovery taking shape in the troubled housing market.

The Standard & Poor's/Case-Shiller home price index shows that prices increased in 12 of the 20 cities it tracks.

Three of the weakest markets reported signs of improvement. Prices increased in Tampa and Miami, while prices in Las Vegas were unchanged.

The biggest month-over-month increases were in Phoenix, Seattle and Dallas. Prices dropped sharply in Detroit, Chicago and Atlanta.

The increases partly reflect the beginning of the spring selling season. The month-to-month prices aren't adjusted for seasonal factors.

The overall index of 20 cities was essentially unchanged in March, after falling 0.8 percent in February.