Sanctions and missiles: US-China tensions over South China Sea rise

China on Thursday accused Washington of violating international law by imposing sanctions on officials and companies over Beijing's military buildup in the disputed South China Sea, but gave no indication of possible retaliation.

The sanctions add to conflict over control of the sea, one of the world's busiest shipping lanes. Washington rejects Chinese claims to most of the area, portions of which also are claimed by Vietnam, the Philippines and other governments.

"The relevant US acts grossly interfere in China's internal affairs, violate international law and relevant international norms, which are totally out of hegemonic logic and power politics," said a foreign ministry spokesman, Zhao Lijian.

The Commerce Department on Wednesday announced penalties against an unspecified number of Chinese officials and 24 companies for their role in building artificial islands to enforce Beijing's territorial claims. The companies were added to an "entity list" that limits access to U.S. exports without government permission.

"China will take firm measures to resolutely safeguard the legitimate rights and interests of its enterprises and individuals," said Zhao.

Meanwhile, The US has imposed a visa ban on members of the Chinese Communist Party (CCP) regime, People's Liberation Army (PLA) and some state-owned businesses responsible for the occupation and militarization of the disputed South China Sea.