The half-brother of North Korean leader Kim Jong Un was assassinated by two women with a poison pen at Kuala Lumpur International Airport on Monday, reports said. Some sources believe Kim Jong Nam, 46, was killed for speaking out against the family.

Wednesday morning, sources have reported that Malaysian police captured a woman in connection to the assassination. Doan Thi Huong, 28, of Nam Dinh, was spotted in surveillance footage at the airport following the killing.

A second suspect remains at large.