Thailand and Cambodia have agreed to establish interim observer teams to monitor a fragile ceasefire that ended five days of deadly border clashes.

Cambodia and Thailand's top defence officials agreed on Thursday to allow observers from the ASEAN regional bloc to inspect disputed border areas and help ensure hostilities do not resume following a violent five-day conflict that ended in a ceasefire late in July.

Thailand and Cambodia agreed Thursday to extend a shaky ceasefire deal that followed five days of deadly hostilities along their border last month.In the first days of the truce, both Thailand and Cambodia accused each other of breaching the deal with limited skirmishes along their shared 800-kilometre (500-mile) border,