Thailand and Cambodia have bickered for decades over undemarcated points along their 817-km (508-mile) land border, with ownership of the ancient Hindu temples Ta Moan Thom and the 11th century Preah Vihear central to the disputes.

Donald Trump said on Saturday he had held talks with the leaders of Cambodia and Thailand, as the two countries sought an "immediate ceasefire" following border clashes.

Thailand’s Foreign Ministry confirmed Trump’s call with acting Prime Minister Phumtham Wechayachai. “However, Thailand would like to see sincere intention from the Cambodian side,” it said. The ministry reiterated its call for bilateral talks between the two sides.