Police arrest teenager in connection to Mayfair Mall shooting in Wisconsin

• Police in Wauwatosa, Wisconsin, announced Sunday that they had arrested a 15-year-old in connection to a shooting on Friday.
• Multiple SWAT teams entered the Mayfair Mall in Milwaukee County, Wisconsin, in response to a shooting last Friday.
• Witnesses told local media they had heard eight to 12 gunshots before they fled the building.
• At least eight people were injured and transported to local hospitals. There were no fatalities.

Police have a arrested a 15-year-old boy in connection to a shooting on Friday at a shopping mall in Wisconsin that left eight people injured.

At least seven adults and one teenager were injured in a shooting at the Mayfair Mall in Wauwatosa, Wisconsin.

On Sunday, Wauwatosa Police Chief Barry Weber said the incident was spurred by a fight between groups, the local Fox television affiliate reported.

A police spokesperson told the station that the teenager was arrested Saturday night and that a firearm was recovered.

Authorities from several law enforcement agencies surrounded the mall about 10 miles northwest of Milwaukee, after reports of shots fired at 2:50 p.m. local time, according to WISN-TV. Investigators from the FBI and the Department of Justice also arrived on the scene.

Police evacuated everyone from the mall Friday evening and the victims were transported to the hospital, according to the Wauwatosa Police Department. The mall remains closed for Saturday.

"Preliminary investigation has led us to believe that this shooting was not a random act, and was the result of an altercation," the department said on Twitter.

'We just dropped to the floor'

Some shoppers told WISN-TV that they heard between eight and 12 gunshots around 3 p.m. local time before they escaped from the building.

"I knew right away it was a gunshot and they just kept coming one right after the other," Jill Wooley, who said she was inside the mall with her 79-year-old mother, told local CBS affiliate WDJT. "We just dropped to the floor."

She added: "We've all been exposed to public shootings like this. I think all of us have thought of what we would do in a situation like this."

Steve Humphrie's daughter called him from inside the mall.

"When she called me, I could hear the shots, so you know, I just took off," he told WDJT. "Any father would be scared and nervous. I just tried to get here as fast as I could."

He said that when he was finally able to Facetime her, police had her waiting in a hallway with a large group of people.

Becky Clark told WISN on Friday that her friend who works at Macy's was hiding in the stock room with her colleagues, waiting to be rescued.

"They're just hiding, they don't know what's going on. They know that multiple people have been carried out," Clark said at the time.

Employees told WISN that they had to keep their hands up as they evacuated the building.

Wauwatosa was a site of protests last month after the District Attorney had refused to issue charges against local Police Officer Joseph Mensah for the fatal shooting of 17-year-old Alvin Cole at the Mayfair Mall.

The police department announced at 3 p.m. that Mensah had resigned from the department.