Residents in central Illinois are assessing damage from rare December tornados that ripped roofs off homes, downed power lines and injured at least 20 people.

The Springfield Journal Register reports the National Weather Service sent crews Sunday to survey the hardest-hit areas, including Taylorville, 25 miles (40 kilometers) southeast of Springfield.

Joyce Morrissey sorts through the debris of her nephew Stephen Tirpak's house in Taylorville, Ill., Sunday, Dec. 2, 2018. The National Weather Service says multiple tornadoes touched down in central Illinois, damaging dozens of structures and injuring multiple people. (Ted Schurter/The State Journal-Register via AP)
Joyce Morrissey sorts through the debris of her nephew Stephen Tirpak’s house in Taylorville, Ill., Sunday, Dec. 2, 2018. The National Weather Service says multiple tornadoes touched down in central Illinois, damaging dozens of structures and injuring multiple people. (Ted Schurter/The State Journal-Register via AP)

Assistant Fire Chief Andy Goodall spoke to reporters Saturday night after the storms raked the city of 11,000. He said at least 100 homes had major damage, including his own.

Steven Tirpak uses a chainsaw to remove tree branches that fell onto his two-story home in Taylorville, Ill., Sunday, Dec. 2, 2018. The National Weather Service says multiple tornadoes touched down in central Illinois, damaging dozens of structures and injuring multiple people. (Ted Schurter/The State Journal-Register via AP)
Steven Tirpak uses a chainsaw to remove tree branches that fell onto his two-story home in Taylorville, Ill., Sunday, Dec. 2, 2018. The National Weather Service says multiple tornadoes touched down in central Illinois, damaging dozens of structures and injuring multiple people. (Ted Schurter/The State Journal-Register via AP)

A Taylorville Memorial Hospital spokesman said 21 people, from age 9 to 97, arrived for treatment Saturday. Most were discharged within hours.

David Bowers, left, his son David and wife Tammy gather at the edge of their property in Taylorville, Ill., after assessing the tornado damage to their home Sunday, Dec. 2, 2018. The family took shelter in the basement while the storm tore the roof completely off their house. The National Weather Service says multiple tornadoes touched down in central Illinois, damaging dozens of structures and injuring multiple people. (Ted Schurter/The State Journal-Register via AP)
David Bowers, left, his son David and wife Tammy gather at the edge of their property in Taylorville, Ill., after assessing the tornado damage to their home Sunday, Dec. 2, 2018. The family took shelter in the basement while the storm tore the roof completely off their house. The National Weather Service says multiple tornadoes touched down in central Illinois, damaging dozens of structures and injuring multiple people. (Ted Schurter/The State Journal-Register via AP)

No deaths have been reported in Illinois. One death was reported in southwest Missouri early Saturday after thunderstorms there.

The National Weather Service says peak months for tornadoes in much of the Midwest are April and June.

Source: The Associated Press