India, Feb. 12 -- North Korean leader Kim Jong Un has selected his teenage daughter Kim Ju Ae as his "successor", South Korea's spy agency told lawmakers on Thursday.

South Korea's National Intelligence Service (NIS), which said that the North Korean leader has picked his daughter as his heir, said it has taken a "range of circumstances" into account before making this assessment, BBC reported.

Kim Ju Ae, believed to be 13, has had an "increasingly prominent public presence at official events" in the recent days, according to NIS, and has been seen alongside her father at high-profile events.

She also undertook her first known public trip abroad when she visited Beijing in September, according to BBC. Ju Ae is reportedly the only known...