The arrest was made Monday after officers from the Ministry of Public Security, Ho Chi Minh City’s Police Department, border guards, and customs officials checked the luggage carried by the passenger, who touched down at the city's Tan Son Nhat airport the previous Friday.
Upon her arrival, security screening at the airport found abnormal signs inside her suitcase.
When inspecting the suitcase, officers found that it had been modified to have a second bottom.
Inside, they found two bags of cocaine. The passenger, 35, had traveled from Kenya’s capital of Nairobi to Ethiopia and then Qatar before reaching HCMC.
Police have expanded the investigation.
Vietnam is a key trafficking hub for narcotics around the Golden Triangle, an intersection of China, Laos, Thailand, and Myanmar and the world's second largest drug-producing region.
The country also has some of the world’s toughest drug laws, with those convicted of possessing or smuggling more than 600 grams of heroin or cocaine, or more than 2.5 kg of methamphetamine, possibly facing the death penalty.