Police have surrounded the suspect in the shooting of a police officer with an armed standoff continuing on Interstate-55. 

39-year-old Floyd Brown is stranded in his vehicle some 170 miles south of the shooting scene, near Lincoln, not far from his hometown of Springfield. Sangamon County Sheriff Jack Campbell, who had operated a potential roadblock says the suspect wrecked, late this morning, setting the stage for the ongoing standoff...

I-55 is closed between mile markers 126 and 134 as well as the neighboring portion of Route 66 with massive traffic backups and detours. 

Today, authorities in Rockford say they tried to serve an arrest warrant at an extended stay motel when Brown opened fire, critically injuring a McHenry County Deputy serving with the U.S. Marshalls Fugitive Task Force. 

Brown reportedly pointed a rifle believed to be an AK-47 at authorities, leading to the arrival of additional State Police swat team members and negotiators.