The MBTA reports 20-minute delays on the Green Line due to "a train with a mechanical problem approaching Copley eastbound."

This comes a few hours after the Green Line was completely stopped after a trolley lost its pantograph at Park Street.

Construction crews have been busy in recent months building new bus stops between Egleston and Jackson squares for dedicated bus lanes and stops that planners say will mean a faster ride to and from Jackson Square and Ruggles on the 22, 29 and 44 bus routes. Read more.

Cambridge Police report a man who objected to being told to put back items he was trying to shoplift from the Porter Square CVS early Saturday responded by punching "an elderly employee in the face and head multiple times with a closed fist." Read more.

The Massachusetts Court of Appeals today upheld a six-month jail sentence for Jennifer Garvey, convicted on two counts of assault and battery for pepper-spraying a woman in the eyes at close range and beating her with a baton after the woman tried to comfort another woman who'd been reported as drunk on a bus at the then Dudley T stop in 2014. Read more.

Update: Suspect arrested.

Around 10 p.m. She was taken to a local hospital with an injury not considered life threatening. A folding knife possibly used in the attack was found at the station.

Transit Police are seeking help finding a woman who attacked a route 110 bus driver at Chelsea and Victoria streets around 10:45 a.m. on Saturday. Read more.

The Boston Fire Department reports firefighters were able to get a man out from under an Orange Line train at Jackson Square around 9:50 a.m.

He was taken to a local hospital for care. The incident remains under investigation, the department says.

Transit Police report they are looking for these two for a robbery at the Wood island T stop around 11:45 p.m. on Jan, 8.

If Nose Boy and the Masked Mug look familiar, contact detectives at 17-222-1050 or send an anonymous text tip to 873873.

Transit Police have released photos of two women they want to talk to about a stabbing at Downtown Crossing around 9:45 p.m. on Jan. 3. Read more.