There were scenes of chaos at the University of Limpopo (UL) in South Africa on Tuesday evening, as a vast majority of students stormed out of the lecture hall where their exam was taking place.

Twitter users uploading videos of the mass walk-out said that the students were protesting against the difficulty of one of the questions on the paper. It’s not yet clear how it got to the point where the entire class was disrupted, but a spokesperson for UL confirmed the validity of the video for us.

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