COTABATO CITY - At least 12 houses were destroyed in a conflagration that hit residential areas in PC Hill area, Barangay Rosary Heights 1, Cotabato City Tuesday, fire officials said.The fire started at about 2:20 a.m. following heavy down pour, Fire Inspector James Ra, speaking for the Bureau of Fire Protection (BFP), said.Ra said 12 houses were affected, 10 were razed to the ground with an estimated cost of damage of P1 million. The fire was contained in an hour, Ra told DXMS Radyo Bida .