(CNN)—The U.S. Navy sent a ship near a contested island in the South China Sea on Saturday to challenge "excessive maritime claims that restrict the rights and freedoms of the United States and others," a U.S. Defense Department spokesman told CNN.
"This operation challenged attempts by the three claimants, China, Taiwan and Vietnam, to restrict navigation rights and freedoms around the features they claim by policies that require prior permission or notification of transit within territorial seas," Cmdr. Bill Urban said.
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