A Chinese warship locked its fire-control radar onto a Philippine navy vessel during a patrol in contested waters of the South China Sea, Manila said Friday, calling the move “alarming.” China lays claim to most of the South China Sea , an energy-rich waterway that carries roughly one-third of global shipping, citing what it describes as historical rights, despite a 2016 ruling by an international arbitral tribunal that rejected those claims. The dispute has put Beijing at odds with several