NEW : Police chief says last gunmen in Taj killed , authorities `` sanitizing '' hotel . NEW : National Security Guard head says more attackers could be inside . NEW : Dutt said the fire had been set by the attackers as a diversionary tactic . Indian PM Manmohan Singh calls for a full investigation into the attack and asks all security agencies to work together. Death toll at 160 civilians , police and military , including 5 Americans .
NEW : Police chief says last gunmen in Taj killed , authorities `` sanitizing '' hotel . NEW : National Security Guard head says more attackers could be inside . NEW : Indian PM Manmohan Singh calls for a full investigation into the attack and asks all security agencies to work together. Death toll at 160 civilians , police and military , including 5 Americans .