There were long delays in the clearance of commercial cargo at the Beitbridge Border Post on Sunday after South African customs officials downed tools.
South African Revenue Services (SARS) employees embarked on a strike demanding a 12 per cent pay rise while the employer is offering 1.69 per cent.
The strike has resulted in the slow movement of commercial cargo entering or leaving South Africa.
Long and slow-moving queues of commercial trucks have become common in Beitbridge and Musina.
Last week, SARS issued a statement saying it had come up with contingency plans to ensure that it continued serving its clients pending a resolution of the salaries dispute. It said:
SARS apologises for any inconvenience caused due to the industrial action taking place across SARS, we are experiencing delays in servicing our taxpayers.
While some branches may be closed to the public, they will continue to honour virtual appointments, as booked.
In the event that a virtual booking is not honoured, please note that the branch will follow up to do the necessary service recovery.
Please continue to also make use of our digital services during this time.
More: The Herald