Two days after North Korea's rocket launch, the South Korean Defence Ministry displayed some debris on one of its naval ships, which it says is from the North Korean rocket, launched two days earlier. The ministry said the debris was found in the high seas about 160 km west of Gunsan, South Korea. The South Korean defence Minister explained where the debris came from

"North Korea's long-range missile launch violated the United Nations Security Council Resolution 1874, so the debris came from the illegal activity and we don't have to return the piece to North Korea."

The spokesman then said the recovered material would be useful in analysing North Korea's rocket technology. The rocket, which North Korea says put a weather satellite into orbit, is viewed by the United States, South Korea and Japan as a test of technology that could one day deliver a nuclear warhead capable of hitting targets as far away as the continental United States.

Written and presented by Ann salter