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Police news conference

During a news conference at the Sioux City Police Department Thursday, Sioux City Police Chief Rex Mueller, left, speaks about an incident in which an undercover Sioux City police officer discharged his weapon Wednesday night. To his right is Woodbury County Sheriff Dave Drew.

SIOUX CITY -- An undercover Sioux City police officer was injured Wednesday during an incident in which a Winnebago, Nebraska, man with an outstanding warrant drove into the officer's vehicle while attempting to evade being apprehended by other officers.

The officer, who was not identified, then fired his weapon into the suspect's vehicle, striking an interior seat, Police Chief Rex Mueller said.

After hitting the driver's side of the officer's vehicle, the suspect, 29-year-old Douglas St. Cyr, of Winnebago, Nebraska, fled the scene on foot and was apprehended a short time later. He was charged with assault on a police officer, driving while license suspended and leaving the scene of a personal injury accident.

One of St. Cyr's passengers, 27-year-old Adrian Lund, of Sioux City, was charged with interference with official acts in connection with the incident. Two other passengers also were in St. Cyr's vehicle. None of the four occupants were injured, Mueller said.

Douglas St. Cyr mugshot

St. Cyr

The officer, who sustained undisclosed injuries, was taken to MercyOne Siouxland Medical Center for treatment, and was later released. He was recovering at home Thursday, the police chief said.

Asked whether the suspect's vehicle hit the officer or the officer was pinned against the driver's side door, Mueller said "that's still being investigated."

"The officer was attempting to not get struck when he retreated to his vehicle. Injuries resulted when he was doing that," Mueller said at a news conference at police headquarters Thursday afternoon.

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An arrest warrant was issued for St. Cyr in March after he failed to appear for a pre-sentence investigation at the 3rd Judicial District Department of Correctional Services in Sioux City. He had been scheduled to enter a plea in Woodbury County District Court to charges of third-offense possession of a controlled substance and driving while license barred. He also was wanted on two counts of contempt of court.

Mueller said officers had gained information that St. Cyr "may be operating in the suspect vehicle" and began to conduct surveillance in hopes of apprehending him Wednesday.

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"The suspect vehicle continued to drive for several miles throughout the city," Mueller said. "Officers were concerned if they attempted a traffic stop, the suspect would not stop, resulting in a vehicle pursuit, putting pedestrians and citizens at risk of injury."

Mueller said officers created a plan to "block or box the vehicle in when the first opportunity presented itself." He said a Woodbury County Sheriff's deputy was directly behind the suspect's vehicle, which was traveling south, when it stopped for a stop sign at the intersection of 28th and Iowa streets about 9 p.m. and waited for cross traffic. An undercover officer in a vehicle traveling eastbound on 28th Street pulled in front of the suspect's vehicle, according to Mueller, in an attempt to block its path.

"The suspect vehicle intentionally drove forward striking the undercover officer's vehicle in the driver's side," he said.

Mueller said the officer fired one round from his handgun at St. Cyr. He said the fired round penetrated the vehicle's windshield and struck an interior seat.

"No one was hit or injured as a result of the discharge," Mueller said. 

Lund, a backseat passenger, then exited the passenger door, fled on foot and was apprehended by officers.

The suspect's vehicle then drove away from officers. Mueller said a woman, whose name wasn't released by police, exited the moving suspect vehicle. She was detained by officers and later interviewed and released.

Before he was apprehended, Mueller said St. Cyr drove the vehicle for a short distance, stopped the vehicle and then fled on foot. A third male suspect, who was not identified by police, remains at large.

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