But Jewish students have complained that they are being intimidated on campus and have claimed anti-Semitic material is being distributed.

A statement released by the Oxford Action for Palestine said: “Our die-in outside the graduation ceremonies sent a clear message to the vice-chancellor [Irene] Tracey and administration.

“When nearly 50 students in blood-soaked academic dress blocked entry to the Sheldonian Theatre with guests and graduands having to climb over protesters to gain entry into the building, this university’s continued inaction and silence materialised in a public display of their avoidance.”

An Oxford University spokesman said: “We are aware of the ongoing demonstration by members of our university community. We respect our students and staff members’ right to freedom of expression in the form of peaceful protests.

“We ask everyone who is taking part to do so with respect, courtesy and empathy. Oxford University’s primary focus is the health and safety of the university community, and to ensure any impact on work, research and learning, including student exams, is minimised.

“As we have stressed in our student and staff communications, there is no place for intolerance at the University of Oxford.”