North Korean leader Kim Jong-un's estranged half-brother, Kim Jong-nam, was found with soiled underwear with faeces and his pupils contracted when his body was taken to medical examination, a Malaysian government doctor has confirmed.

Both these signs indicated that he was killed of poisoning, said the doctor as she testified at a court in Malaysia.

The North Korean leader's outcast half-brother was assassinated at the Kuala Lumpur airport on 13 February 2017. The high-profile murder had set off a diplomatic row between Malaysia and North Korea. Though it is widely believed the reclusive Pyongyang regime is behind the murder, the country has rejected the accusations.

Pyongyang said Jong-nam died of heart attack.

Two female suspects Siti Aisyah of Indonesia and Doan Thi Huong of Vietnam are in custody for allegedly murdering Jong-nam. They have been charged with throwing VX nerve agent on Jong-nam's face at the airport terminal, killing him within two hours.

On Monday, 27 November, Nurliza Abdullah, one of the two government doctors involved in the murder case, confirmed the medical examination indicates Jong-nam should have been poisoned. She said a large amount of excrement found in Jong-nam's underwear and pupils' contraction is "cholinergic" effect caused by the VX nerve poison.

"Based on our autopsy and the lab test results, the cause of death is acute nerve agent VX poisoning," Abdullah told the court corroborating the earlier post-mortem report submitted.

She added that tests from the chemistry department were also taken into account which found traces of the nerve agent on Jong-nam's body. The trial is set to continue on Tuesday, 28 November.

Monday's session was cut short as the next prosecution witness wasn't ready, ABC News reported.

North Korea
From left: Kim Jong-nam half-brother of North Korean leader Kim Jong-un (R) Reuters