Latest: 10 people injured after taxi driver steps on accelerator instead of brakes at Boston airport

Latest: A Massachusetts State Police official said the crash is believed to be a case of "operator error" in which the driver stepped on the gas pedal instead of the brake.

Update 8.05pm: A Massachusetts State Police official said the crash is believed to be a case of "operator error" in which the driver stepped on the gas pedal instead of the brake.

The 56-year-old taxi driver's vehicle struck the pedestrians in a taxi-queuing area on Monday afternoon near the East Boston airport.