An officer at the checkpoint earlier denied it would be closed today. As time passed, the number of Myanmar people arriving swelled, leading to the governor relaxing the closure measure for a day.
Thousands of Myanmar labourers are expected to return to home, while some are expected to remain in Thailand.
However, most of them who travelled to Tak to return to their hometowns said they did not hear about the border closure. Some had already booked buses and cars to transport them home.
According to Tak immigrant officials, around 3,200 Myanmar workers returned home on March 22. More than 1,000 arrived at the border checkpoint this morning.