PETALING JAYA (THE STAR/ASIA NEWS NETWORK) - CCTV cameras at Kuala Lumpur International Airport 2 (KLIA2) have captured a clearer image of a woman believed to be one of the assassins who killed Kim Jong Nam, the half-brother of North Korean leader Kim Jong Un.

The image zooms in on the alleged killer's features, depicting her to be middle-aged and of Asian descent.

In the grainy image, she can be seen wearing a top with the word "LOL" in large letters and a blue short skirt, with her right hand over a small sling handbag.

An earlier CCTV image that had been circulating online showed a picture of a woman believed to be the same person, but taken from a greater distance and at a different angle.

Jong Nam, 45, died after he was attacked at KLIA2 on Monday.

He is believed to have been attacked by two female agents who splashed his face with a chemical at the airport's departure hall at about 9am on Monday.

The women later got into a cab and fled.

It is believed that Jong Nam arrived in Malaysia from Macau on Feb 6 and was about to return there when he was attacked.