Beijing "has the right" to declare an air defence identification zone over the South China Sea, it said Wednesday as it stepped up denunciations of an international tribunal that ruled against its expansive claims in the strategic waters.

South China Sea dispute: Beijing warns other countries it will protect interests

Beijing "has the right" to declare an air defence identification zone over the South China Sea, it said Wednesday as it stepped up denunciations of an international tribunal that ruled against its expansive claims in the strategic waters.