Officer said they recognized 42-year-old Ronald Noel, who they say is a known white supremacist and has warrants out for his arrest, at a gas station near 4200 S. State St.
When authorities tried to talk to him he jumped in his car and took off, hitting an officer in the process.
Authorities said Noel led officers on a high-speed chase that reached speeds of about 100 mph and then crashed into an embankment and ran.
Police have set up a containment area near 2200 W. and 4100 S. where they are searching for him with K9 officers.
The officer who was clipped was not injured.
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