A U.S. Marshals task force officer was shot while trying to serve an arrest warrant at a Rockford hotel Thursday morning and the suspect remains at large, police said as they searched for the suspect in central Illinois.

Illinois State Police said officers pursued a suspect, believed to be the gunman, in a vehicle on Interstate 55 in Logan County. The suspect remained in the vehicle as state police and SWAT officers responded at the scene, authorities said.

Northbound and southbound lanes of I-55 near Lincoln were shut down until further notice, ISP said. Route 60 was also temporarily shut down.

Authorities initially said officers were at the scene investigating an "active shooter" situation at the Extended Stay hotel off North Bell School Road.

Rockford police said members of the task force were attempting to serve an arrest warrant around 9:15 a.m. when they were fired on. One officer was hit in the gunfire. His condition was not immediately known.

Police said the suspect, armed with a rifle, fled the room and remained at large as of 10:50 a.m. Thursday.

Residents were advised to avoid the area near the hotel. The Bureau of Alcohol, Tobacco, Firearms and Explosives and numerous other departments also responded to the scene.

Rockford police identified the suspect as 39-year-old Floyd E. Brown, believed to be a resident of the Springfield area. His suspected vehicle is a light blue or silver Mercury Grand Marquis with a license plate of BF13112 or a temporary plate of 4850256.

Police spokesman Andre Brass warned that Brown is considered "armed and dangerous" and urged residents not to approach if he is seen but to call 911.

Brown was identified as a burglary suspect in December in Bloomington, Illinois. Police said Brown fled from police and eluded officers. It was not clear if he was ever taken into custody. A reward of up to $1,000 was being offered for information leading to his arrest at the time.

Illinois State Police confirmed they were responding to Interstate 55 near Lincoln, far south of Chicago. Details on why they were there remained unclear, however.

"We just want to end this incident peacefully with his surrender," Brass said.

Illinois Gov. J.B. Pritzker said he was "closely monitoring the active shooter incident in Rockford and urge members of the community to follow the instructions of local law enforcement. My immediate thoughts and prayers are with the officer shot, his family, first responders & residents affected by this situation."

Check back for more on this developing story.