Classes have been suspended at the University of Liberia as a result of a strike by teaching staff.
They are locked in a dispute with management over salaries and other working conditions.
The crisis worsened on Monday when police tear-gassed students protesting against the absence of their teachers and poor sanitation.
The university's financial difficulties have worsened since President George Weah announced three years ago that tuition will be free.
But the government insists it has increased financial support to the university since then.
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BBC