The woman, who was in possession of a Vietnamese travel document with the name Doan Thi Huong, was alone at the time of her arrest.
The “suspect was positively identified from the CCTV footage at the airport and was alone at the time of arrest,” police said in a statement.
Police say they are looking for “a few” other suspects in connection with the death.
BREAKING: Malaysian police arrest female w Vietnam travel document in connection with death of North Korean man believed to be Kim Jong Nam pic.twitter.com/jjtXB5r6MI
— Sumisha Naidu (@SumishaCNA) February 15, 2017
Authorities confirmed on Tuesday that Kim Jong-nam had died after falling ill at Kuala Lumpur International Airport (KLIA).
“The deceased… felt like someone grabbed or held his face from behind,” the senior assistant commissioner of the Malaysian Police Criminal Investigation Department, Fadzil Ahmat, said, adding “he felt dizzy, so he asked for help at the… counter of KLIA.”
A receptionist at the airport also stated that someone had grabbed Kim’s face, according to Fadzil.
However, South Korea’s TV Chosun reported that two women believed to be North Korean operatives poisoned Kim with a needle, citing multiple South Korean government sources.
On Wednesday, local media reported that CCTV cameras at the airport had captured a clearer image of a woman allegedly connected with the murder. She appeared to be middle-aged and of Asian descent.
In the image posted online by The Straits Times, she can be seen wearing a top with the word “LOL” in large letters and a short blue skirt. Her right hand is placed over a small handbag.
— The Straits Times (@STcom) February 15, 2017
A previous CCTV image showed a picture of a woman believed to be the same person, but taken at a greater distance and from a different angle.
South Korea also confirmed on Wednesday that the murdered man was indeed Kim Jong-nam, Channel News Asia reported.
“Our government is certain that the murdered man is Kim Jong Nam,” said Chung Joon-Hee, a spokesman for Seoul’s unification ministry, which handles inter-Korea affairs.
Seoul claims that Pyongyang had been planning to kill the North Korean leader’s half-brother for the past five years.
“If the murder of Kim Jong Nam was confirmed to be committed by the North Korean regime, that would clearly depict the brutality and inhumanity of the Kim Jong Un regime,” South Korean Prime Minister Hwang Kyo-ahn, the country’s acting president, told a security council meeting on Wednesday.