Person critically injured in downtown Boston stabbing

A person has life-threatening injuries after being stabbed Saturday evening in Boston's Financial District.

Boston police say they received a call around 6:17 p.m. for a report of a person stabbed at 125 Summer Street. Responding officers found a victim with grave injuries, and they were taken to the hospital.

Homicide detectives are on scene, police said.

The scene is near a number of businesses downtown, and police tape was sectioning off a large area of sidewalk, including in front of South Station where an officer could be seen stationed out front.

Clothing, a backpack and other personal belongings lined the side of Summer Street near the MBTA stop.

A man tells NBC10 Boston that he was sitting inside the door of South Station when he heard some commotion outside, so he went outside where he saw the victim running up the street.

"I think it's heinous and it shouldn't be happening," he said. "I just saw a couple of people tussling and then I seen a kid running down the street leaking blood. The blood was everywhere it trailed all the way from the back all the way down the street."

People who were making their way in and out of the MBTA stop shortly after the stabbing were disturbed by the active police presence, particularly the homicide detectives.

"I think it's like I don't know scary. We're just trying to get a train to go home. So scary for us," Gabrielle Borges said.

"We never saw that so that's kind of weird," Clara Ruston chimed in.

"Yeah, we just saw it in like the movies," Borges added.

"Like another night in the city but in retrospect I live in the suburb of Quincy, yeah not the vibe, that's not I was hoping for, this early before 9 p.m. but I don't know, city life, you know?" another woman said. "It's sad though."

There was no immediate word on a possible suspect or a motive, and further information about the victim has not been provided.

An investigation is active and ongoing.