The incident happened in Aurora, Illinois.
Five people have been killed in the US state of Illinois after a gunman opened fire at an industrial park.
Police say several others were injured in the incident, which happened at a manufacturing company in Aurora.
The gunman was killed in an exchange of fire with police officers.
Authorities have named the gunman as 45-year-old Gary Martin.
They say he was a former employee at the company who was recently fired from his position.

Deaths from Iran protests reach more than 500, rights group says
US military targets IS in Syria strikes
Israeli fire kills three people in Gaza, tension rises
Tens of thousands protest in Minneapolis over fatal ICE shooting
One dead in Australian bush fires