WASHINGTON (Reuters) - The United States said on Tuesday it has seen signs in recent weeks of continued militarization by China in the South China Sea.

U.S. State Department spokesman John Kirby also said that China would be in violation of international law if it ignored an arbitration court ruling, which found that China has no historic title over the waters of the South China Sea.

(Reporting by Jonathan Landay; Writing by Yara Bayoumy)