Cambodian Defense Ministry spokesperson Lt. Gen. Maly Socheata accused Thai forces of escalating the violence with bombardment of Cambodian territory early Sunday, followed by a “large-scale incursion” involving tanks and ground troops in multiple areas.

Both countries' foreign ministers agreed that no other country should be involved in the issue, Mohamad Hasan said.

Thailand and Cambodia have agreed to hold talks in Malaysia on Monday in an attempt to negotiate an end to a conflict that has lasted four days.