Abduction victim Megumi Yokota was likely sent to a spy training facility in Pyongyang soon after she was taken from Japan to North Korea in 1977 when she was 13, according to a South Korean source.

South Korean abductees in their late teens were being taught about North Korean ideology at the facility at that time, while Yokota is believed to have been taught the Korean language and received other education there, the source said Sunday.

The source reportedly obtained the information from testimony by a North Korean spy caught in South Korea and other sources.