First responders work at the scene of a shooting in Cleveland, Ohio, early Sunday that police say left 9 people wounded.
CNN  — 

US marshals on Tuesday arrested a 25-year-old man in connection with Sunday’s mass shooting in Cleveland that left nine people wounded, Cleveland’s police chief said.

The arrest happened in Lorain, about 30 miles west of Cleveland, Police Chief Wayne Drummond said at a news conference, adding that tips led investigators to a home there.

Police still were looking for the weapon used in the shooting, Drummond said.

Seven victims remained in a hospital Tuesday with non-life-threatening injuries, and two people were released on Sunday, Drummond told reporters.

The shooting happened in Cleveland’s Warehouse District at 2:25 a.m. Sunday, when an assailant opened fire on a group of people, police said.

A suspect fled the scene that Jennifer Ciaccia, an agency spokesperson, described in a statement as “chaotic.”

Cleveland officers were already nearby as part of a routine detail in the area, the chief said. They responded immediately and gave medical aid to the victims, who include seven men and two women ranging in age from 23 to 38, Drummond said Sunday.

No officers were hurt, Ciaccia said.

Victims were shot in places ranging from their knees and legs to their feet and arms, according to a news release.

Drummond said Sunday that investigators had “no indication” that anything of note had taken place before the assailant opened fire. On Tuesday, he said that what led to the shooting still was under investigation.

Investigators were reviewing evidence and video and have interviewed victims, according to a statement from Ciaccia.

The shooting is just the latest example of America’s struggle with gun violence, as mass shootings continue largely unmitigated.

The US has had at least 373 mass shootings so far in 2023, according to the Gun Violence Archive, which, like CNN, defines a mass shooting as one in which four or more people are shot, excluding the shooter.

US Rep. Shontel Brown – who represents Cleveland, part of Ohio’s 11th District – thanked first responders in a statement and urged Congress to do more to stem the crisis, specifically calling for universal background checks, banning assault weapons and addressing gun trafficking, among other measures.

“Gun violence is devastating Northeast Ohio and Clevelanders deserve to be safe,” Brown’s statement said. “This epidemic is tearing at the fabric of our communities, and it will not end without significant legislative action.”

Cleveland Mayor Justin M. Bibb expressed gratitude that no one was killed in the shooting but said it marked a “tragic and sad day” that highlights the United States’ “massive gun problem.”

CNN’s Claudia Dominguez contributed to this report.