Many students were injured on Thursday at the Community Secondary School, Oroworukwo in Port Harcourt, the Rivers State capital, when an unidentified student allegedly opened a teargas canister in the classroom. Some of the students, who were almost choked by the smoke from the canister, were seen in a video clip that has gone viral, jumping from the first floor of two storey building housing the secondary school It was learnt that the 17-year-old student in SS 2 got the teargas canister from the room of his late father who was a policeman. The teargas canister was said to have exploded and the sound sent students jumping down from the first floor, while those at the top floor were seen in the video running for safety. The incident, according to a source, happened in the morning and forced everybody out of the school premises for the entire day. It was gathered that several students sustained various degrees of injuries as they frantically tried to escape from the two-sto...