Nigeria's lingering lecturers' strike
6 November 2013 Last updated at 20:25 GMT
There are faltering talks between the Nigerian government and university lecturers to bring an end to a four-month-long strike.
The lecturers are demanding improvements in their wages and working conditions. This latest action has seen students unable to take exams and forced to stay at home.
Higher education in Nigeria has had a troubled history recently and it has become normal for students to graduate a year or two late because of disruption to their education.
BBC Africa's Tomi Oladipo reports from Lagos.
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