Tramel McClough, 47, is one of the inmates; he is an African American with brown eyes, black hair, 6'4" and 285 pounds. The other inmate is 47-year-old John Bivins, an African American, 5'9", 180 pounds.
FULL VIDEO: News conference on search for inmates who escaped Palo Alto courthouse
Authorities say it was an orchestrated event that involved getaway vehicle(s). Officials said there is no immediate threat to the courthouse.
The men were last seen in their jail jumpsuits.
The men are considered dangerous, and police are asking the public to not approach or attempt to apprehend them.
If you have information, please call 911 immediately or the Santa Clara County Department of Corrections at (408) 808-3670.