Update, 5:20 p.m. Wednesday, April 23
The suspect is described as a thin black male in his 30s, about 6 feet tall and clean shaven, according to the Somerville Police Department.
The attack was similar to one reported Wednesday, April 16, in Cambridge, also near Porter Square, police said. However, police are still investigating whether the same suspect was involved in both. In both incidents, women were walking home from the Porter Square MBTA Station. The Cambridge attack occurred on Richdale Avenue.
Anyone with information is asked to contact the Somerville Police Criminal Investigation Division at 617-625-1600, ext. 7610.
A female student at Harvard University was pulled into an alley off Beacon Street by a man shortly after 1 a.m. Monday, according to WCVB.
The incident occurred near Beacon’s intersection with Oxford Street.
The student screamed and was able to free herself from her attacker, according to the news station. She was not injured.