mogadishu two car bomb separate part somalia capital mogadishu kill least 22 people saturday injure several others police say first explosion city k5 junction area line government offices hotels restaurants destroy several build set dozens vehicles fire know least 20 civilians dead dozens others wound say abdullahi nur police officer area death toll surely rise still busy transport casualties say add body rubble two hours late second blast take place city madina district car bomb two civilians kill siyad farah police major tell reuters add suspect catch suspicion plant explosives immediate claim responsibility although islamist al shabaab group carry regular attack al qaeda-allied group wag insurgency topple weak u.n.-backed government african union ally impose strict interpretation islam frequently launch gun grenade bomb attack mogadishu regions control federal government though recent years militants lose territory control african union peacekeepers government troop car bomb kill least 22 somalia 's capital mogadishu police