Harvard University Police detectives are investigating the unarmed robbery of an undergraduate, which occurred at approximately 11:30 p.m. on Tuesday, May 16. According to police, the suspect approached the student from behind near the Adams House E-entry door and grabbed her pocketbook before fleeing down Plympton Street toward the river. He then took a wallet and dropped the bag. The suspect is described as a white male with a goatee, about 6-foot-3-inches tall, 20 to 23 years old, and wearing a blue hooded sweatshirt and blue jeans. Anyone with information on this case is asked to contact HUPD detectives at (617) 495-1796.