A knife-wielding man injured three people Saturday afternoon in downtown Indianapolis. The suspect had been asked to stop playing a siren on a bullhorn, authorities said.

Injured in the attack were 28-year-old James Anderson, Jr., 26-year-old Edward Lee Atkins and 46-year-old Johnny Gilson, 46, were injured in the attack, according to a police report.

Gary Madison, 57, of Indianapolis faces three preliminary charges of battery by means of a deadly weapon, jail records showed.

Madison himself was among four people hospitalized. Two are in critical condition; two others in serious condition, according to Indianapolis Fire Department Battalion Chief Rita Reith.

A police report indicated Madison was being held at the Marion County Jail.

Taylor George told The Indianapolis Star she was with a group of family and friends on the American Legion Mall, enjoying a sunny afternoon when the man rode up on a bicycle, got off and began playing a siren on a bullhorn. She said she and a female friend asked him to stop. George said her friend has epilepsy and was concerned the siren noise could trigger a seizure.

George said no one among the group knew the man, but they had seen him downtown before.

“He has been down here before with the bullhorn, but usually he uses it [to talk],” George said.

Immediately after being asked to stop, the man reportedly pulled out a knife and tried to stab the two women. George, who is pregnant, said the blade came within inches of her stomach. As the two dodged him, George said, Madison threw his bicycle at them and other members in the group.

“He pulled his knife out of his pocket and when he couldn’t get us with the knife, he threw his bike at us. And that’s when my family members and friends tried to stop him,” George said.

Four men in the group rushed the suspect. One of George’s friends was stabbed in the stomach and two others in their arms, she said. The suspect accidentally stabbed himself in the abdomen, George added.

After the fight, another member of the group detained the suspect until police arrived.

“I was really scared,” George said. “I thought I was going to get stabbed.”