Several people were reportedly injured in an escalator malfunction at Boston train station

Nine people were rushed to hospital on Sunday after an escalator at a Boston transit station backed up at high speed, according to initial reports.

The reported incident took place at Back Bay station in the heart of Boston on Sunday.

Mike Saccone of LiveBoston617.org was the first to report the story.

He quoted a witness as saying, “It happened as soon as I went up the stairs. I heard a lot of people screaming behind me and saw a bunch of bodies coming down the escalator.

A spokesperson for the Massachusetts Department of Transportation told DailyMail.com that the incident is under investigation.

The MassDOT oversees the Massachusetts Bay Transit Authority (MBTA), the agency that operates Boston’s commuter train, bus, and subway services.

The above image from March 2001 is a photo of the Back Bay MBTA station in downtown Boston

In June 2011, five people were injured when an escalator at the same station in Back Bay malfunctioned while backing up while it was supposed to move in the opposite direction.

Those who were injured were on their way to a tape parade in honor of the city’s professional hockey team, the Boston Bruins, who had won the Stanley Cup championship days earlier.

The MBTA has been plagued by problems in recent years.

Earlier this month, a Boston University professor was killed after falling through a large gap into a heavily rusted staircase that connects a roadway to the JFK / UMass MBTA station.

Last month, two trains running along Commonwealth Avenue on the MBTA Green Line collided, injuring 23 people.

There were around 65 to 70 passengers on each train at the time of the crash, officials said. Fortunately, none of the injuries were serious.