Jack Teixeira update: Military document leaker expected to plead guilty, sources say

BOSTON -- Jack Teixeira, the young Massachusetts Air National Guardsman accused of leaking a trove of classified military documents and posting them online, has reached an agreement with federal prosecutors to plead guilty, according to a new court filing and sources familiar with the case.

On Thursday, federal prosecutors in Boston filed a motion for a Rule 11 hearing, which signals Teixeira will plead guilty and the judge will determine whether the plea is truly voluntary.

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To what charge or charges Teixeira will plead was not immediately clear. The plea agreement has not been publicly filed.

He previously pleaded not guilty.

This is a developing story. Please check back for updates.

The video in the player above is from an earlier report.