At least one death is reported after tornadoes swept across central Iowa on Saturday.

The twisters damaged homes in several towns and sent college football fans running from a stadium for shelter.

Authorities are evacuating part of Stratford, a town of about 746 residents, 50 miles northwest of Des Moines, because of a gas leak. Search and rescue teams found the body of an 82-year-old Stratford resident.

In Woodward, 30 miles to the south, 20 to 40 homes were severely damaged. Dalls County Sheriff Brian Gilbert says emergency crews had searched house-to-house and hadn't found any victims by evening.

The National Weather Service says it appears that at least three tornadoes touched down Saturday afternoon.

In Ames, football fans gathering for the Iowa State-Colorado game were cleared from the stands and told to take shelter in the nearby basketball arena as the tornado sirens sounded.