UPDATED, 9:57 p.m.: A MedFlight helicopter landed at Waltham High School and transported another patient to the hospital Brigham & Women's Hospital in Boston.
UPDATED, 9:40 p.m.: One patient has been extricated and taken to the hospital, while a second one has been removed as well. A MedFlight helicopter is on its way to the school to transport the second patient.
Waltham firefighters are responding to a serious car crash at Waltham High School, according to Patch correspondent Stephen Walsh and Twitter reports.
A car went into the woods leaving one woman trapped, according to Twitter user @matredsoxfan2. Firefighters requeted a MedFlight helicopter, but were told it was 35 minutes away. Instead, at least one ambulance is responding to the scene, according to scanner reports.
Stay tuned to Waltham patch for updates.