By M. Alex Johnson and Miranda Leitsinger, msnbc.com
A tornado blew a school bus into a house in Marysville, Ind.
Updated at 10 p.m. ET: Tornadoes swept across the Midwest and the South on Friday, hitting hardest in Indiana, Kentucky and Ohio, where at least 25 people were killed. An entire town was flattened in Indiana, and homes and businesses were destroyed from Ohio to the Gulf Coast.
Fourteen people were killed in Indiana, state homeland security officials told NBC News. Ten more were killed in Kentucky, the state's Joint Information Center told NBC News. One person was killed in Ohio, the state Emergency Management Agency told NBC News.
The town of Marysville, Ind., population about 1,900, was "completely gone," and Henryville Junior-Senior High School was destroyed, Clark County sheriff's Maj. Chuck Adams told NBC News. All the students escaped, some with minor scrapes, Adams said.