A Chinese Coast Guard vessel (R) passes near the Chinese oil rig, Haiyang Shi You 981 (L) in the South China Sea. [Photo/Agencies]

BEIJING - China on Wednesday rejected certain parties' misinterpretations of international law on territorial disputes in the South China Sea, saying its activities in the region were "legitimate and reasonable."

Foreign Ministry spokesperson Hua Chunying was responding to the words of US President Barack Obama, who on Monday said China should "throwing elbows" in the South China Sea. Japanese Chief Cabinet Secretary Yoshihide Suga also said China should abide by international norms.

"Even if these interpretations are not double standards, they come with ulterior motives," Hua said at a regular press briefing.

"What [international] law forbids China to conduct reasonable construction on its own islands and reefs? What law allows close reconnaissance by warships and planes of another country's islands and reefs? What law allows the infringement of sovereignty and legitimate rights and interests in the name of freedom of navigation?" Hua asked.

She said China's activities in the South China sea were legitimate and reasonable. China always safeguards and plays a constructive role for the international laws and rules.

"China will not violate international laws nor harm others to benefit itself. However, it will safeguard its own sovereignty, security and development interests," Hua stressed.

She said she hoped relevant countries could maintain an objective and just attitude, and play a constructive role in the peace, stability and prosperity of the Asia-Pacific region.