A look at main events since the Feb 13 assassination of Kim Jong Nam, the half brother of North Korea's leader, Kim Jong Un. The saga so far:

FEB 13

• A North Korean man carrying a passport that identifies him as Kim Chol, 46, is attacked at Kuala Lumpur International Airport 2 at around 9am. CCTV footage leaked later showed that he walked to a clinic in KLIA2 on his own accord, but died en route to hospital.

FEB 14

• Reports first emerge in South Korea that Mr Kim Jong Nam has been poisoned by two female assassins in Malaysia.

FEB 15

• Malaysian police arrest Vietnamese woman Doan Thi Huong, 28, at KLIA2 as she plans to fly out.

• Police detain a Malaysian believed to be the boyfriend of the second woman suspect.

FEB 16

• Based on the man's information, police arrest Indonesian woman Siti Aisyah, 25.

FEB 17

• North Korean Ambassador Kang Chol says Malaysia is "colluding with hostile forces" after police turn down Pyongyang's demands not to conduct an autopsy and to hand over the body.

• Police arrest a North Korean national, Ri Jong Chol, who has a work visa from a Malaysian healthcare medication company.

FEB 19

• Police release images of four North Korean men caught on airport CCTV who are suspects.

FEB 20

• Foreign Minister Anifah Aman says Mr Kang's allegations "are culled from delusions, lies and half-truths".

• Malaysia recalls its ambassador to North Korea and summons Mr Kang to its Foreign Ministry to explain his harsh words.

• Mr Kang, in a second outburst, wants his country to be allowed to join probe, citing "grave human rights abuses".

• Prime Minister Najib Razak says he has "absolute confidence" in Malaysia's police and doctors, who "are very, very professional".

• CCTV footage of the attack leaks online.

FEB 21

• Health officials say preliminary observation from post-mortem shows that the victim had no puncture wounds and did not die of a heart attack.

• Mr Kang says the victim "fainted from a heart attack", and calls it a "natural death".

FEB 22

• Police want to interview a second secretary at the North Korean Embassy, and an employee of national airline Air Koryo.

• Police say the two women knew they were poisoning the victim.

• Mr Kang says if poison was used, why did the two women not die as they used their hands to smear the chemical on the victim's face.

• Police say there was an attempt to break into the morgue where the body of the victim is held.

FEB 26

• Kuala Lumpur airport terminal declared safe after sweep for toxins.

MARCH 1

• Vietnamese Doan Thi Huong and Indonesian Siti Aisyah, 25, charged with murder.

MARCH 2

• Malaysia's Attorney General says North Korean suspect Ri Jong Chol will be deported on March 3 after his two-week remand is over