Woman in 'LOL' T-shirt arrested over North Korean assassination in Malaysia

Malaysian police have arrested a woman believed to be linked to the assassination of North Korean dictator Kim Jong-un's half-brother inside Kuala Lumpur's international airport terminal.

Police swooped on the woman believed to be a spy for the hermit kingdom, reportedly posing as a Vietnamese national named Doan Thi Huong.

She was recognised on CCTV footage at Kuala Lumpur International Airport in a shirt emblazoned with a large "LOL".

Grainy footage reportedly shows the woman standing at the airport waiting for a taxi.

The woman in the LOL shirt was spotted on CCTV at the airport. Source: VTN
The woman in the LOL shirt was spotted on CCTV at the airport. Source: VTN
A TV screen shows pictures of North Korean leader Kim Jong-un and his older brother Kim Jong-nam, left, at the Seoul Railway Station in Seoul, South Korea. Source: AAP
A TV screen shows pictures of North Korean leader Kim Jong-un and his older brother Kim Jong-nam, left, at the Seoul Railway Station in Seoul, South Korea. Source: AAP

In a statement police said the "suspect was positively identified from the CCTV footage at the airport and was alone at the time of arrest".

The arrest comes as North Korean officials unsuccessfully attempted to block the autopsy of Kim Jong-nam, the North Korean leader's older half-brother.

Two female Pyongyang operatives reportedly assassinated Jong-nam on Monday, grabbing him from behind and sticking him with poison darts.

The woman is listed as a Vietnamese national. Source: VTN
The woman is listed as a Vietnamese national. Source: VTN
The North Korean stooges were spotted outside the morgue. Source: Reuters
The North Korean stooges were spotted outside the morgue. Source: Reuters

Agents attached to the North Korean embassy in Kuala Lumpur were seen lurking outside the city morgue where the body was taken, the Daily Mail reports.

The spooks were reportedly at the site to reclaim the body on North Korean demands to block the autopsy.

The operatives waited so long in a car with tinted windows they had to order some food from KFC.

Kim Jong-nam, the estranged half-brother of North Korean leader Kim Jong-un, has been killed in Malaysia. Source: AAP
Kim Jong-nam, the estranged half-brother of North Korean leader Kim Jong-un, has been killed in Malaysia. Source: AAP
Kim Jong-nam had spoken out publicly against his family's dynastic control. Source: AAP
Kim Jong-nam had spoken out publicly against his family's dynastic control. Source: AAP

The officials requested that the body be released to them right away, but Malaysia rejected the request, several sources said.

No decision has been taken on whether the body of Kim Jong-nam will be handed over to North Korea, the sources added.

Police are still searching for a "few" more foreign suspects in relation to the Cold War-esque poisoning assassination.

North Korean leader Kim Jong-un. Source: AAP
North Korean leader Kim Jong-un. Source: AAP
A South Korean man watches TV showing breaking news about the alleged assassination. Source: AAP
A South Korean man watches TV showing breaking news about the alleged assassination. Source: AAP

Kim Jong-nam was known to spend a significant amount of his time outside the country and had spoken out publicly against his family's dynastic control.

Malaysian police confirmed he died on the way to the hospital and was believed to be in his mid-40s.

Kim Jong-nam and Kim Jong-un are both sons of former North Korean leader Kim Jong-Il, who died in late 2011, but they had different mothers.

Kim Jong-nam did not attend his father's funeral.

The portly and easygoing Kim Jong-nam was believed to be close to his uncle, Jang Song-thaek, who was North Korea's second most powerful man before being executed on Kim Jong-un's orders in 2013.

Kim Jong-nam had said he had no interest in leading his country.