(ATTN: UPDATES throughout with JCS explanation)
SEOUL, Sept. 28 (Yonhap) -- North Korea fired two short-range ballistic missiles (SRBMs) into the East Sea on Wednesday, ratcheting up tensions amid an ongoing South Korea-U.S. naval exercise involving an American aircraft carrier.
The Joint Chiefs of Staff (JCS) said it detected the launches from the Sunan area in Pyongyang between 6:10 p.m. and 6:20 p.m. It did not elaborate, pending an analysis.
The launches came just three days after the North fired off an SRBM into the East Sea
"While strengthening our monitoring and vigilance, our military is maintaining a full readiness posture in close cooperation with the United States," the JCS said in a text message sent to reporters.
The latest saber-rattling came as U.S. Vice President Kamala Harris plans to visit Seoul on Thursday and the allies' Navies are staging an exercise featuring the nuclear-powered USS Ronald Reagan carrier in the East Sea.
The U.S. carrier, a centerpiece of America's naval might, arrived here on Friday for the first allied exercise near the peninsula in five years. The four-day exercise is set to run through Thursday.
The allies have been cranking up security coordination amid concerns that the recalcitrant regime would engage in provocative acts like a nuclear test or a submarine-launched ballistic missile launch.
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