The Rock Island County Integrity Task Force is investigating two gunshots that were fired early Sunday in The District of Rock Island - including one shot fired by a Rock Island Police officer - after police were called to break up a large crowd.

Ajustin Hughes, 25, of Davenport, was arrested on charges of aggravated discharge of a firearm, possession of a weapon by a felon, resisting arrest and obstruction of justice. Also arrested was Demico Hill, 19, of Davenport, on charges of obstruction of justice. Rock Island police were called to the 1800 block of 2nd Avenue at 2:39 a.m. today.

No one was shot, and no one was injured during the incident, police said.

Now, task force members are gathering evidence and interviewing witnesses, according to Renee Sandoval is commander of the task force that includes law enforcement officers from the cities of Moline, Rock Island, East Moline, Silvis and Milan; the Rock Island County Sheriff's Department; and the Illinois State Police.

"The reason for the large crowd was it was about the same time that all the bars were getting out," Sandoval said.

"Mr. Hughes ran from the police," Sandoval said. "The police were able to identify him and then actually apprehend him. He was with Mr. Hill at the time." Officers saw Hughes fire the weapon, Sandoval said.

Sandoval said a Rock Island police officer fired a weapon. "That's the reason we were called in."

Hughes is being held in the Rock Island County Jail, and is scheduled to appear in court Monday, Sandoval said.

On Sunday night, The District remained quiet, with quiet streets and drinking establishments closed.

The Rock Island County Integrity Task Force was requested to investigate the incident because a police officer discharged a weapon, Sandoval said.

The task force is governed by a board comprised of all the chiefs represented within it. "We're called in to investigate integrity cases, anything involving a police officer and public integrity. It's an independent team that comes in and does a fair and impartial investigation.

"What we end up doing, is conducting an investigation when somebody is alleging there was some wrongdoing by a police officer," Sandoval said. "We gather evidence, interview witnesses and conduct a thorough investigation. We forward that to the state's attorney's office, which will review the investigative file. He makes the determination whether there was wrongdoing."

And, Sandoval added, "It works both ways. Sometimes someone could make false allegations against a police officer, and he could file charges against that person as well."

Sandoval does not know when the investigation will conclude. "We don't want to put a time limit on the investigation," he said. "We're not into making it quick. We're into doing a thorough, accurate investigation."

Sandoval added he had "no idea" whether Hill is related to Pachino Hill, a career Quad-Cities criminal who pled guilty in June to six charges in connection with a police-pursuit crash that killed Hill's friend and passenger, 21-year-old Sharnice Johnson. He faces up to 32 years in prison. He is scheduled to be sentenced July 15.