Thai soldiers warned Cambodian troops to withdraw after they were caught cutting a wire fence along the disputed border.

The Royal Thai Army confronted the officers from the neighbouring country at the Chong Arn Ma checkpoint in Ubon Ratchathani on Tuesday.

Colonel Richa Suksuwanon, deputy spokesman for the Royal Thai Army, said five Cambodian soldiers were seen cutting through two rows of concertina wire.

Thai rangers from Company 2310 immediately ordered them to withdraw.

The Cambodian soldiers complied and left without further incident.

Thai officers subsequently reinstalled the wires. They remain stationed in the area to monitor the situation, which is currently stable.

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 reached a truce at midnight on July 28, following talks facilitated by Malaysian Prime Minister Anwar Ibrahim, chair of the Association of Southeast Asian Nations (ASEAN). However, skirmishes have continued.

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!'