Dear Lord.

A Boston federal courthouse is being evacuated:

https://twitter.com/thundercloudcat/status/324601435885023233

Brigham and Women’s hospital is also reportedly under evacuation:

We will continue to monitor this situation and update with further developments.

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More from the courthouse scene:

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Update:

The threat at the hospital has reportedly been cleared:

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More:

Related:

Moakley federal courthouse mobbed as media report Boston bombing suspect to appear; Evacuated [pics]