THE number of people killed by two car bombs that exploded outside the education ministry in Somalia's capital Mogadishu has risen to at least 120 people, the health minister said. The al Qaeda-linked Islamist group al Shabaab claimed responsibility for Saturday's blasts, Somalia's deadliest since a truck bomb killed more than 500 people at the same location five years ago. The first of the explosions hit the education ministry at around 2 p.m. on Saturday. The second hit minutes later as ambulances arrived and people gathered to help the victims. Health minister Ali Haji Aden said the death toll stood at…