A police spokesman said nine people were killed and 16 others wounded in a shooting in Dayton, Ohio.
The police shot the gunman. It was not recognized.
All the victims were taken to hospital, and the police did not report their condition.
Police continue to operate at the scene and the FBI has joined the effort.
This is the second shooting in the past 24 hours in the US A 21-year-old gunman opened fire at a Walmart store in the Cielo Vista Mall in El Paso, Texas, killing 20 people and wounding 26 others. The shooter has been arrested by the police.