The suspect also made threats of violence against the arresting officers as well as the investigators at the police station, Schmaling said.
An illegal immigrant on a Greyhound bus who allegedly threatened to shoot and kill passengers on Friday - leading police on a chase from Wisconsin to IL - was deported five times, a U.S. Customs and Border Protection spokesperson told Fox News. Illinois State Police said they are investigating whether he was carrying a gun.
Police put out spike strips on I-94, which brought the Greyhound bus to a stop on an exit ramp to Route 173 in Lake County, Illinois.
The "disorderly and possibly armed subject" was taken into custody, authorities said. A spokesman for the Racine County Sheriff's Office did not immediately return a call Saturday morning.
Several law enforcement agencies from Wisconsin and IL reportedly are now at the scene, surrounding the bus.
Williams said at one point he thought the police were escorting the bus, not realizing the situation on the back of the bus.
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The Turkish forces were firing from Turkey's southern province Hatay and the observation point in Syria's Idlib province. A senior Syrian Kurdish official said on Sunday that fighting between the YPG and Turkish forces was already under way.
Covelli said Vargas-Rosas is being held pending extradition to Racine County, Wis.
"The driver indicated he did not stop because he thought it was a training exercise by law enforcement, or else he did not see us and thought we were trying to stop someone else", the Sheriff said. "He did make threats that he was going to shoot and kill".
Schmaling did not know when Vargas-Rosas was deported to Mexico.
Police took the suspect into custody.
Authorities did not find a gun on Vargas-Rosas, but Schmaling said the bus had not been thoroughly searched yet. Authorities are looking to extradite him back to Wisconsin, where he is facing charges of making terroristic threats.