ISTANBUL

The Thai and Cambodian forces on Sunday continued exchanging artillery shells along the disputed border even as US President Donald Trump has pressed for a ceasefire between the two Southeast Asian nations.

Cambodian Defense Ministry spokeswoman Maly Socheata said that Thai forces continued to “invade Cambodian territory,” accusing the Thai side of firing artillery shells and rockets into the Cambodian side, according to the daily Khmer Times.

Separately, Thai army spokesman Richa Suksuvanon said the Cambodian forces opened artillery fire on various regions, causing damage to the infrastructure, according to Thai PBS.

He added that the Thai side "will only cease fire when Cambodia comes to negotiate,” indicating that the fighting between the two Southeast Asian neighbors dragged on for the fourth day.

No new casualties were reported on Sunday, as the death toll remained at 33, with thousands of people from both sides of the border evacuated.

Trump on Saturday spoke with the prime ministers of Cambodia and Thailand, calling on them to begin ceasefire negotiations, which he said they agreed to.

Thailand reported 20 deaths, including six soldiers, while Cambodia said 13 of its citizens, including five soldiers, were killed since the latest escalation began on Thursday.

The Southeast Asian neighbors have a border dispute along Cambodia’s Preah Vihear province and Thailand's northeastern province of Ubon Ratchathani, with renewed tensions since May 28, when a Cambodian soldier was killed.