This is the dramatic moment Thai police clashed with Cambodian villagers at the border.

Footage shows officers deploying tear gas and firing rubber bullets as furious Cambodian protesters tried to dismantle a razor wire fence in a disputed area in Sa Kaeo, Thailand, on Wednesday.

Officers carrying Y-shaped poles positioned themselves to fend off any approaching residents.

The choking gas and volley of bullets forced the crowd to retreat into Ban Nong Ya Kaew village.

Police Colonel Chaturaphat Singhathit, deputy commander of Sa Kaeo Provincial Police, said the riot police were dispatched to maintain order after Cambodian villagers began throwing rocks at soldiers stationed at the frontier.

The concertina wire fence was repaired and reinforced with rubber tyres. When the protesters later returned at 5 pm local time, riot police blasted them with sound cannons.

Riot police pulled back from the area after the clash subsided at 6:30 pm.

Thai media reported two Thai policemen were injured while the Cambodian military said a number of their soldiers were also wounded.

The governors of Sa Kaeo and neighbouring Banteay Meanchey province in Cambodia were reportedly set to meet to discuss the border conflict.

The clash came just a day after dozens of Cambodian residents stormed Ban Nong Chan village to decry Thailand's alleged encroachment after they saw Thai soldiers installing an electric pole near the fence.

Reinforcements from Thailand's Burapha Task Force later arrived to calm the mob after they reportedly began throwing objects at the officers.

Thailand claims it historically allowed refugees to stay in the region following the carnage of the Khmer Rouge without ever evicting them.

But leaders changed their stance following a series of Hun Sen rocket attacks into four provinces that killed at least 23 civilians on July 24, including a strike on a fuel station in Sisaket. They vowed to reclaim their land due to the hostilities between the two countries.

Officials this month put up signs in the area in Thai, English, and Khmer, declaring that the villagers were 'committing an offence under Thai jurisdiction'. Those who refuse to leave may face up to 15 years in jail and a maximum fine of 100,000 Baht, officials said.

Sa Kaeo Governor Parinya Phothisat said he has requested cooperation from Governor Oum Reatrey in neighbouring Banteay Meanchey in Cambodia to move residents from the 'encroached land'.

Thai authorities have deployed soldiers along the border amid fears of escalating violence.

A bloody military confrontation 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 that dozens of people have been killed and more than 300,000 displaced on both sides of the border.

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