Police say a victim in Cambridge was sexually assaulted by a masked man armed with a knife

Cambridge police are investigating a reported sexual assault that occurred in a restroom at a commercial building in the Massachusetts city, according to authorities. Cambridge police said they responded to the area of ​​Cambridgepark Drive just before 9:20 p.m. Friday after receiving a report of an assault in progress. According to police, the victim told officers that they had been attacked by a masked man armed with a knife. Officials said Cambridge investigators are investigating a crime scene in the restroom of the business building and are working with Massachusetts State Police investigators to identify and search for a suspect. Police said the Middlesex County District Attorney’s Office also was notified of the incident. Anyone with information is asked by Cambridge police to contact Crime Stoppers at the anonymous tip line at 617-349-9151, or submit a tip online by clicking here. Cambridge police also reminded residents to call 911 immediately if they ever feel threatened or notice any suspicious activity.