Long-festering tensions over border territory have escalated into armed conflict between Cambodia and Thailand, leading to dozens of deaths on both sides and displacing tens of thousands of people.

The tank screeches as it rolls into the ad-hoc military base before four battle-weary soldiers jump out to re-inspect the hefty vehicle.

Thailand said late Saturday it agrees in principle to entering a ceasefire with Cambodia and beginning a "bilateral dialogue" aimed at ending the nations' deadliest fighting in more than a decade.

Evacuation centers in Thailand near the Cambodian border continue to house masses of civilians who have fled the armed conflict.

The leaders of Cambodia and Thailand have agreed to meet to negotiate a ceasefire, according to a social media post by United States President Donald Trump on Saturday.

The neighbours are locked in a bitter spat over an area known as the Emerald Triangle. Read more at straitstimes.com. Read more at straitstimes.com.

South Korea on Sunday raised the travel alert for border regions in Cambodia and Thailand, the second adjustment of travel warning in three days, as the tensions from the two countries' armed conflict are escalating.

A fierce border conflict between Cambodia and Thailand has escalated, resulting in significant casualties and displacement. International concern has grown, prompting intervention from US President Donald Trump,