North Korean So Yong Ra, 41, is a former air stewardess with Air Koryo, North Korea’s national flag carrier. Her name has previously been reported as So Yong La.
Channel NewsAsia has obtained a photograph from police sources of the woman they want to question.
“She is from Pyongyang. She is believed to have lived in Macau together with him since 2001 and eventually got married,” the source added.
He did not give details about why the Malaysian authorities want to question So and did not provide information on where she is thought to be, except to say that she did not come with him to Malaysia.
“She (So) worked at Air Koryo from 1992 to 1998. She studied at the Pyongyang Music and Dance University,” said the source.
“So Yong Ra was one of the women who was with him when he was arrested in Japan in 2001,” the police source added.
A diplomat, who is the second secretary of the North Korean embassy in Kuala Lumpur, and a male staff of Air Koryo are wanted for questioning by the Malaysian police. The diplomat was caught on CCTV sending off the four suspects at the airport as they fled from Malaysia.
Malaysian police are also hunting for the people responsible for bringing the nerve agent into the country.
“So far there are no new arrests,” said the source.