Police arrest woman, still searching for man in armed robbery at Dorchester gas station

Police arrested a woman and are still searching for a man after the two allegedly robbed a gas station with a syringe Friday afternoon in Dorchester, Boston police said.

The male suspect allegedly held a syringe to an employee at Express Gas at 1154 Morrissey Blvd. He and the female suspect then took “an undisclosed amount of cash” and fled the scene in a car, which police later located on Geneva Avenue in Fields Corner with only the woman inside, Officer Kim Tavares said.

The woman was charged with armed robbery and is expected to be arraigned Monday in Dorchester District Court, according to Tavares.