LYNN, Mass. — An MBTA bus operator is recovering after she was stabbed twice in her back by a passenger on Saturday, WCVB 5 reports.

Witnesses say it was an unprovoked attack and other passengers jumped in to help her and subdue the suspect, who police identify as a 53-year-old man from Lynn, Mass. Police said the passengers detained the suspect until police arrived and took him into custody. For the full story, click here.