Washington (CNN) -- The Taliban's top military leader, Mullah Abdul Ghani Baradar, has been captured, a senior administration official told CNN late Monday.

This is a "huge deal," CNN National Security Analyst Peter Bergen said. "This guy ... is the number two political figure in the Taliban" in addition to being the group's top military commander.

Baradar was captured several days ago in a secret joint operation by Pakistani and American intelligence forces in Karachi, Pakistan, according to American government officials, the New York Times reported.

