Dozens of patriotic Thais sang the Thai national anthem to show support for their soldiers stationed along the Thai-Cambodia border.

Locals carrying Thai flags travelled to the a military base in Trat province to deliver supplies to troops on September 21.

The group, including people from neighbouring provinces, belted out the national anthem near the frontier to boost morale. They then helped lay down sandbags to reinforce a border barrier.

Resident Itsara Ingkapiankun, said: 'We gathered here because we were worried about soldiers after learning about the Cambodian encroachment. We also donated items that they can use.'

Protests from the Cambodia side broke out along the Thai-Cambodia border last week, in the worst escalation since a military ceasefire was brokered by ASEAN members in July. Other than a brief phone call, the extent of President Trumps involvement has been questioned.

Thai riot police fired tear gas and rubber bullets at the civilians who were trying to tear down razor wire fences and hurling insults at the officers .

Cambodian officials claimed 23 villagers were injured, while the Thai authorities said several troops were also wounded.

Thailand has since given Cambodia 30 days to clear the area if no agreement is reached after the next General Border Committee talk.

Thailand and Cambodia have been fighting for more than a century over several undemarcated sections of their 817-kilometre (508-mile) border, which was originally mapped by France in 1907 while Cambodia was still its protectorate.

But tensions flared in the long-disputed frontier as both accused each other of instigating violence on July 24, which killed at least 48 and temporarily displaced some 300,000 on both sides of the border.

Cambodia claimed responsibility for an alleged war crime, firing rockets into Thailand that struck a gas station, killing a number of children.

The two nations have reached a shaky truce following talks facilitated by Malaysian Prime Minister Anwar Ibrahim, chair of the Association of Southeast Asian Nations (ASEAN).