Thai schools have switched to remote lessons amid ongoing tensions on the border with Cambodia.

The Khlong Yai Wittayakhom School in Trat, southern Thailand, offered online classes to Cambodian students unable to enter the country due to the conflict.

Deputy school director Thiti Ruangrit said many schools and hundreds of Cambodian schoolchildren who had previously been attending Thai schools had been affected by the clashes.

He said: 'The school has immediately adjusted its teaching plan to online learning for this group of students to avoid disruption, drawing on experience from the COVID-19 pandemic. Online learning will continue until the border situation improves and border crossings resume.'

The escalating military confrontation - the bloodiest in more than a decade - flared in long-disputed border areas as Thailand and Cambodia accused each other of instigating the violence on July 24.

The Thai army claimed the clash began when six armed Cambodian soldiers approached a Thai outpost after a drone was heard near a disputed Khmer temple. Thai troops said they shouted warnings and claimed the Cambodians opened fire first.

However, Cambodia's Defence Ministry accused Thailand of provoking the violence, saying its forces acted in self-defence.

Officials said at least 43 people have been killed and more than 300,000 displaced on both sides of the border.

Both sides have reached a truce at midnight on Monday, following talks facilitated by Malaysian Prime Minister Anwar Ibrahim, chair of the Association of Southeast Asian Nations (ASEAN).

He said: 'This is a vital first step toward de-escalation and the restoration of peace and security.'

President Trump had earlier threatened to pause trade deals with both countries if clashes continued.

He said after the ceasefire was forged: 'By ending this War, we have saved thousands of lives ... I have now ended many Wars in just six months — I am proud to be the President of PEACE!'