Police have made an arrest following a shooting incident in Illinois, USA.

TV pictures show dozens of first responder vehicles outside a building housing the Henry Pratt Co in Aurora. 

"We are told that multiple people have been struck by gunfire," a spokesman for the Kane County State Attorney's Office wrote in an email.

An Aurora police spokesman said "multiple people ... multiple officers" were injured and a suspect is in custody.

The spokesperson could not confirm any fatalities.

Two area hospitals are receiving multiple patients, a hospital source said, although the exact number and their conditions are not known at this time.