A man was shot and killed during a quarrel on a sidewalk in Chicago's River North district early Sunday morning.

Around 3:15 a.m., the victim and another man were quarreling in the 600 block of North Franklin Street, near Ontario Street, when the other man pulled out a gun and shot the victim several times in the chest.

The shooter fled the scene, police said.

As police investigated the shooting, crime scene tape was seen strung up beneath the Chicago Transit Authority Brown and Purple Line tracks, which run directly above Franklin Street at that point.

Police dispatch audio shows officers questioned four witnesses, but they were not cooperative.

scene Sunday afternoon — in a grave reminder for River North residents of what happened. There was another deadly shooting two weeks ago a few blocks away.

"That's so scary," said Kirsten Wellna. "It's like like just a block away, couple of blocks."

Wellna and Brian Hubick said it seems like violence has increased in their river north neighborhood.

"Concerning, the amount of violence that's happening in the kind of vicinity right around here — elsewhere through the city, but it's hitting closer and closer to home for everyone I think," Hubick said.

Wellna and Hubick says violence hit even closer to home recently. They live in the Level Hotels & Furnished Suites apartment building, at 369 W. Grand Ave. off Orleans Street, where one woman was killed and another wounded in a shooting on Saturday, Feb. 21.

Demetris Shorter, 35, of Davenport, Iowa, was charged last weekend with one felony count of first-degree murder and one felony count of attempted first-degree murder in the shooting at the Level.

One woman was found shot inside a suite in the building. Police said they found the victim, identified as 32-year-old Kenliada Porter, in a guest room with a gunshot wound to the shoulder. She was taken to Northwestern Memorial Hospital, where she died. 

Another victim, a 29-year-old woman, was found shot in the lobby on the Level. A source said the victim was a security guard who tried to stop the shooter from getting access to the rest of the building.

"We live just a few floors away from where the body was found that was murdered, but yeah, it's just really scary," said Wellna.

Hubick and Wellna said the shooting at the Level, and now the shooting early Sunday morning blocks away, make them feel uneasy.

"It may feel newer to this neighborhood, but obviously it's not new to the city," said Hubick. "So I think we feel how a lot of other members of the city and residents of the city feel."

Steps away from the scene of the shooting this weekend, Thomas Bailey, a bouncer at Sound-Bar at 226 W. Ontario St., was also shot and killed just steps away after a group of people started fighting in March 2019.

No one was in custody late Sunday in the shooting on Franklin Street. Belmont Area detectives are conducting a homicide investigation.

CBS News Chicago has reached out to Ald. Brendan Reilly (42nd) for comment about the shooting this weekend, but had not heard back as of 10 p.m.