Kim Jong Un chooses teen daughter as heir, says Seoul

North Korean leader Kim Jong Un has selected his daughter as his heir, South Korea's spy agency told lawmakers on Thursday.

Kim Ju Ae - who is believed to be 13 - has in recent months been pictured beside her father in high-profile events like a visit to Beijing in September, her first known trip abroad.

The National Intelligence Service (NIS) said it took a "range of circumstances" into account including her increasingly prominent public presence at official events" in making this assessment.