Man stabbed to death in fight on escalator in Boston's South Station

A man was stabbed to death on an escalator in Boston's South Station on Wednesday, and police are seeking the public's help to find the suspect.

Transit Police responded to a report of a fight in the Red Line station at about 5:30 p.m. A man was found suffering from at least one stab wound. He was taken to a local hospital and pronounced dead.

"At this time, the preliminary investigation indicates that there was an altercation between the victim and another male on the escalator leaving South Station," said Boston Police Superintendent Paul McLaughlin.

No arrests have been made. McLaughlin asked anyone who witnessed the stabbing to contact police. He said detectives are working to talk to witnesses and gather video evidence.

The Suffolk County District Attorney's office is assisting in the investigation. 

"There's obviously, given the time of day, a number of witnesses, so anyone who knows anything about what may have happened … either before, during or after this altercation, we need you to contact the Boston Police Department," District Attorney Kevin Hayden said.

No other information has been released.