amanda akass, bbc south east today.vo, filled with smoke in the early hours of today with 285 people inside. three people have been arrested a criminal investigation into the possible violation of safety regulations has opened. at least eight people have been killed and 17 others injured by a huge explosion in somalia's capital, mogadishu. many of the injured are reported to be children from a nearby school. the militant group, al—shabab, has claimed responsibility for the suicide attack, which targeted a united nations convoy travelling along a busy road junction. the bbc�*s, mercyjuma, has more details. a clear up exercise near the ka junction in the heart of mogadishu, the area where the blast went off at about 7:30am. witnesses report of a huge explosion, followed by clouds of smoke and then deafening gunfire. translation: there | was a lot of screaming and everything was shaking. if you can imagine walking somewhere and then, all of a sudden, boom! i was shocked. thanks to allah. the blast was so intense, it destro