U.S.-backed talks to end the border war, in which militaries have killed dozens of people and displaced hundreds of thousands, began on Monday in Malaysia.

Malaysian Prime Minister Anwar Ibrahim said that it would come into effect at midnight local time, 1.pm Easter Time Monday July 28.

Thailand and Cambodia have agreed to an "immediate and unconditional ceasefire" after five days of fighting at their border killed at least 33 people and displaced tens of thousands.