The driver, an off-duty Boston Police officer, was semi-conscious and had "serious injuries to his head, face, neck, shoulder, and chest area," but is expected to survive, police say.
BPD Internal Affairs is now investigating the crash; no charges have been filed, police say.
Officer Richard Jeanetti is currently awaiting trial for drunk driving after allegedly blowing through a stop sign and crashing into another car at West and Austin streets while off duty on May 24.
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