Ho Chi Minh City traffic inspectors on Wednesday fined 10 cars that link up with customers through the taxi-hailing app Uber for providing an unlicensed taxi service.
The cars were operating at Tan Son Nhat International Airport.
While those drivers who operated individually were fined VND3.5 million ($163) each, those that worked for a business were fined VND7 million ($326).
The inspectors said the drivers provided a taxi service without a transportation license and a badge, and failed to show a transportation contract between car owners and passengers.
The inspectors of HCMC Transport Department were in their second crackdown on unlicensed taxis, which was launched Monday, at the Tan Son Nhat airport and bus stations around the city.
During the first crackdown that started on November 28 last year, municipal traffic inspectors fined 11 drivers, many of whom said they were using Uber.
A traffic inspection (R) stands next to a car that offers Uber-taxi service.
While the controversies about the operation of Uber taxis in Vietnam are still on and on, recently the Ministry of Transport ordered Uber Technologies Inc. to sign contracts only with transport companies that have been licensed by Vietnamese authorities and comply with the country's operational standards.
It also ordered transportation companies that have or will sign contracts with Uber to comply with Vietnamese laws on cars and drivers.
The ministry said random inspections will be launched to periodically check the operations of these transportation companies, and if the companies fail to meet the requirements, they, and Uber as well, will face penalties.