At least 10 people were wounded during a shooting in downtown Tucson, Arizona, early Sunday after a gunman opened fire in a busy entertainment district before being stopped by a responding police officer, according to authorities, as reported by Fox News.

The shooting occurred around 2 a.m. on July 19 in the 100 block of East Congress Street, an area known for its bars, restaurants, and nightlife.

According to the Tucson Police Department (TPD), officers who were patrolling nearby heard multiple gunshots and immediately ran toward the scene.

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Police said they encountered a man running from the area after the shooting. Authorities said the suspect ignored repeated commands from officers, prompting a uniformed Tucson police officer to fire his weapon, striking the fleeing suspect.

The suspect, whose identity has not been released, was taken into custody after the shooting.

Officers rendered first aid before Tucson Fire Department personnel transported him to a local hospital. Police said the suspect was listed in life-threatening condition.

No fatalities were reported in the incident. Tucson Mayor Regina Romero said nine victims suffered gunshot wounds, while a tenth person was also reported injured.

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Police said the gunshot victims were struck primarily in their extremities, including their arms and legs.

Responding officers began providing emergency medical assistance to several victims before firefighters arrived. All of the injured victims were transported to local hospitals for treatment.

"Last night, Tucson experienced another serious and senseless act of gun violence," Romero said in a statement Sunday.

"A shooter recklessly began shooting in a crowded area, striking nine people before being stopped by a Tucson Police Officer."

Authorities said no law enforcement officers were injured during the response.

Romero also praised the emergency response by police officers and firefighters following the shooting.

"Thanks to the quick actions and excellent care provided by our firefighters and police officers, all victims were stabilized and taken to the hospital, where we are hopeful they will all recover," Romero said.

The officer-involved shooting will be investigated by the Pima County Sheriff's Department.

Tucson police said the department will also conduct a separate internal investigation to determine whether any department policies were violated during the incident.

The investigation into the circumstances surrounding the initial shooting remains ongoing.

Authorities have not released a possible motive, and the suspect's identity had not been made public as of Sunday evening.

Following the incident, Romero also called for additional gun-control measures in Arizona.

"Easy access to guns and Arizona’s weak gun safety laws have continued to put all of us at risk," Romero said.

"From requiring universal background checks to extreme risk laws to funding violence prevention, there is more lawmakers can and should do."

The mayor's comments came as investigators continued processing the crime scene in downtown Tucson and gathering evidence related to the shooting.

The Pima County Sheriff's Department, which is overseeing the investigation into the officer-involved shooting, did not immediately respond to a request for comment from Fox News Digital.

Authorities have not announced any criminal charges, and investigators continue working to determine what led to the shooting.

Officials have indicated that both the criminal investigation into the shooting and the review of the officer's actions remain active.

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