More than 15 arrested after Nigerian student beaten to death by mob on campus

Okoli Ahinze, accused of stealing a phone, said to be victim of university's SMS punishment' carried out among students

More than 15 students at one of Nigeria's top universities have been arrested over the death of a man who was attacked by a mob on campus.

Okoli Ahinze, a final-year civil engineering student at Obafemi Awolowo University, was found dead on 11 April.