Sao Paulo, Nov 8 (Reporter) An explosion at a residential building in the Brazilian city of Maceio killed at least three people, including a 10-year-old, and injured five, the fire department reported Thursday. Initial information from a Civil Defence spokesperson suggested that the explosion was likely caused by a gas leak from the system of one of the apartments in Maceio's Cidade Universitaria neighbourhood. The blast triggered a fire that destroyed the two-story building, which housed 20 apartments. The city government has arranged hotel accommodations for residents displaced by the accident...////...