<sod >At least three people have died and seven injuredÂ inÂ a "huge" explosion in the centre of theÂ SomaliÂ capital Mogadishu.< eod>< sod > At least three people have died and eight injuredÂ inÂ a "huge" explosion on a busy street in the centre of theÂ SomaliÂ capital Mogadishu.< eod>