Updated

The court-martial of a U.S. Army private who gave troves of classified material to the website WikiLeaks is building toward testimony about video of a deadly U.S. airstrike in Afghanistan.

The trial of Pfc. Bradley Manning resumes Tuesday at Fort Meade, near Baltimore.

On Monday, the court heard the first, fleeting testimony about the 2009 airstrike in Farah province that killed at least 26 civilians in the village off Garani.

WikiLeaks tweeted in January 2010 that it had obtained encrypted video of U.S. bombings of civilians. The tweet referenced an article about the Garani incident.

Manning has acknowledged sending classified video of the incident to the secret-sharing website WikiLeaks in the spring of 2010.

The government alleges Manning was the source of the clip WikiLeaks tweeted about.