ソース 朝鮮日報
http://english.chosun.com/site/data/html_dir/2010/04/20/2010042000972.html

'N.Korean Officer' Says North Sank the Cheonan

A North Korean Army officer has testified that the North Korean military attacked the South Korean Navy corvette Cheonan before it sank in the West Sea on March 26, the head of a South Korean activist group claimed Monday. Choi Sung-yong of the Family Assembly Abducted to North Korea said, "It seems that the Cheonan was sunk in a premeditated North Korean operation."

Choi published a transcript of a telephone conversation with what he says is a senior North Korean Army officer.

According to the transcript, the officer says, "Thirteen commandos who left from Cape Bipagot sank the Cheonan. Many people as well as military officers already know who attacked the ship."

The officer claims the motive was revenge. "After the North lost the sea skirmish in November last year, Kim Jong-il gave an order to take revenge. He gave the order when he visited the naval fleet command in Nampo."