the report of a stabbing around 5:30 p.m. on Aug. 12

A man was fatally stabbed on an escalator at Boston's South Station after a fight on Wednesday afternoon, police said.

MBTA Transit Police responded to the report of a stabbing around 5:30 p.m., Boston police said. A man was found suffering from a stab wound inside the station.

The man was brought to an area hospital, where he was pronounced dead.

Investigators believe the victim and another person were involved in an altercation on an escalator that leads to an exit.

The victim had at least one stab wound, according to Boston police.

The Boston Police Department's homicide unit is investigating. Anyone who saw what happened is asked to call 617-343-4470. Anonymously tips can also be left by calling 1-800-494-8477 or by texting "TIP" to 27463.

An entrance to the busy transit hub was taped off, and blood could be seen on an escalator that was taped off as well.

Red Line trains had temporarily bypassed South Station due to the police activity, the T had said.