A woman who had just come out of the Green Street T Monday night found a man holding a knife to her side and demanding her phone. The incident took place around 10:45 p.m., which was when she made it safely to the police station just two blocks away.
The victim gave the man the phone, according to Police Officer Rachel McGuire. The woman started walking away and the man stopped her to demand the passcode. She gave that to him as well and went to the E-13 station at Green and Washington to report the incident.
The woman did not accept medical treatment.
The suspect is described as a light-skinned man in his late teens or early 20s, about 170 pounds and 5-6. He wore a knit cap with the Bruins logo and stripes, black pants, a light-colored shirt and white sneakers. His beard was cut in a thin chin-strap style.
McGuire said the victim did the right thing in handing the phone over when the mugger said so.
"You never know what they're capable of," McGuire said. "It's just a phone. It's just material. It can be replaced."
Transit Police helped Boston Police search the area. The T has the man on video, McGuire said.