Seoul, South Korea - South Korea's military on Friday said it has recovered a large piece of wreckage from a North Korean missile, about two weeks after it crashed.

The piece was believed to be the second stage of a rocket carrying a North Korean military reconnaissance satellite which failed to launch at the end of May.

The cylindrical piece of wreckage was pulled from the Yellow Sea on Thursday evening, South Korea's Joint Chiefs of Staff said on Friday.

According to reports from South Korean broadcasters, the 40 foot-long piece was to be brought ashore to a naval base for joint analysis with US experts.

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South Korea hopes the investigation will provide further clues about the status of North Korea's missile development. Space and long-range missiles are largely based on the same technology.

North Korea admitted the technical failure shortly after the launch of its first military reconnaissance satellite on May 31.

The missile crashed into the sea about 125 miles west of South Korea's Eocheong Island. The military in Seoul had already stated at the time that they had pulled an object out of the water that was probably part of the ill-fated missile. The search for other parts continues.

On Thursday, South Korea and Japan said North Korea had launched two ballistic missiles into the East Sea, also known as the Sea of Japan.