BOSTON (CBS) — The MBTA driver that crashed into a guardrail over the Massachusetts Turnpike in Newton, has been charged with obstruction of justice.

The driver, identified as Shanna Shaw, is expected to be arraigned in Newton District Court on May 27. MBTA Transit Police have also cited Shaw for driving to endanger, speeding and impeded operation.

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Shaw, 43, crashed around 7:30 a.m. Sunday on Washington Street. The bus went through a guardrail and fence and ended up dangling over the westbound side of the Pike.

Eight people were hurt.

A source told the I-Team Monday that witnesses said they saw the bus driver using her phone and rummaging through her pocketbook before the crash.

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Sources say, video from the bus shows the driver also ran back on the bus to get her cell phone as the bus dangled over the highway, according to the source.

The case remains sealed and there have been no citations issued yet in the investigation.

According to Massachusetts Department of Transportation, Shaw’s driving record includes a license suspension for failing to promptly pay a citation from 1997 and 1998.  Violations that occurred between 1994 and 2008 that she was found responsible for include: 2 surchargeable accidents, failure to have her vehicle inspected, two violations for failure to use safety, failure to stop, improper equipment, improper passing, two seat belt violations, and one speeding violation.

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