Anti-Israel protesters burned diplomas outside Columba University Wednesday demanding the release of Mahmoud Khalil who was arrested by immigration agents in March.

NEW YORK (AP) — The head of Columbia University gave a commencement speech Wednesday acknowledging the absence of student activist Mahmoud Khalil, who was due to receive his diploma this week but is instead in a Louisiana jail facing deportation for his role in pro-Palestinian campus protests.

Video shows a crowd heckling Columbia University's president at a graduation ceremony:: New York:: Chants of 'Free Mahmoud' refer to the detention of Palestinian student Mahmoud KhalilReuters was able to verify the location of footage from buildings and road layout seen on file images,