Officials in Thailand are voicing their concern about a recent decision by military-ruled Burma to close a border checkpoint that serves as a link of commerce between the two countries.
Burma abruptly shut its Myawaddy-Tak border crossing on Wednesday.
Officials in Thailand's western Tak province say the closure of the checkpoint could mean losses of up to 1.2 million dollars in trade each day.
The move appears to be retaliation for Thailand's decision last week to close down one of its checkpoints in nearby Kanchanaburi province. Thailand closed the border following last week's kidnapping of two Thai border patrol policemen by the DKBA Democratic Karen Buddhist Army.
The DKBA has links to Burma's military regime.