Thailand and Cambodia shut several border crossings in tit-for-tat moves, ratcheting up tensions between the two Southeast Asian neighbors as Prime Minister Paetongtarn Shinawatra fights to save her government from a political crisis triggered by a leaked phone call over the weekslong standoff.

Thai media reported on Sunday that the Thai army prepared to close two more crossing points in response to the Cambodian side's announcement to close two border crossings.

Tens of thousands of people gathered in Cambodia’s capital Phnom Penh on Wednesday for a march to show their solidarity with the government and military, amid soaring tensions with neighboring Thailand following a border row that erupted last month.