Vietnamese Doan Thi Huong, who was a suspect in the murder case of North Korean leader's half brother Kim Jong Nam, reacts as she leaves the Shah Alam High Court on the outskirts of Kuala Lumpur, Malaysia March 14, 2019. Malaysia's attorney-general on Thursday rejected Vietnam's request to free a woman accused of the murder of Kim Jong Nam, the half-brother of North Korea's leader, and a court set April 1 for her trial to resume. REUTERS/Lai Seng Sin

Vietnamese Doan Thi Huong, who was a suspect in the murder case of North Korean leader's half brother Kim Jong Nam, is escorted as she arrives at the Shah Alam High Court on the outskirts of Kuala Lumpur, Malaysia March 14, 2019. Vietnam's call had followed Monday's release, at Indonesia's request, of an Indonesian woman, who had been accused along with the Vietnamese, Doan Thi Huong. REUTERS/Lai Seng Sin

Vietnamese Doan Thi Huong, who was a suspect in the murder case of North Korean leader's half brother Kim Jong Nam, is escorted as she arrives at the Shah Alam High Court on the outskirts of Kuala Lumpur, Malaysia March 14, 2019. Huong and Siti Aisyah were charged with killing Kim Jong Nam by smearing his face with VX poison, a banned chemical weapon, at Kuala Lumpur airport in February 2017. REUTERS/Lai Seng Sin

Vietnamese Doan Thi Huong, who was a suspect in the murder case of North Korean leader's half brother Kim Jong Nam, is escorted as she arrives at the Shah Alam High Court on the outskirts of Kuala Lumpur, Malaysia March 14, 2019. "It's our complaint that the public prosecution has not acted fairly and justly to Doan Thi Huong," her lawyer Hisyam Teh, who asked for an adjournment on the grounds that his client was unwell. Teh told the court the rejection of Vietnam's request was "perverse", and a case of discrimination, as the attorney-general had favoured one party over another, since the court had ordered both to enter their defence. REUTERS/Lai Seng Sin

Vietnamese Doan Thi Huong, who was a suspect in the murder case of North Korean leader's half brother Kim Jong Nam, reacts as she leaves the Shah Alam High Court on the outskirts of Kuala Lumpur, Malaysia March 14, 2019. Vietnam's ministers of justice and foreign affairs are communicating with their Malaysian counterparts to secure his client's release, Teh added. REUTERS/Lai Seng Sin

Vietnamese Doan Thi Huong, who was a suspect in the murder case of North Korean leader's half brother Kim Jong Nam, leaves the Shah Alam High Court on the outskirts of Kuala Lumpur, Malaysia March 14, 2019. The trial featured airport video recordings of two women allegedly assaulting Kim Jong Nam while he prepared to check in for a flight. In one, a woman identified as Huong puts her hands on Kim's face, while a blurry image shows someone the prosecution identified as Siti Aisyah hurrying away. REUTERS/Lai Seng Sin