Three Thai soldiers on patrol were wounded Saturday when one stepped on a land mine in territory along the border with Cambodia, Thailand's army announced.
The incident came just two days after the two countries reaffirmed their adherence to a ceasefire to end a brief armed conflict.

The army's statement said the incident took place in Thailand's Sisaket province and "clearly demonstrates to both domestic and international society that the use of concealed weapons in border areas continues to exist, constituting a clear violation of the Ottawa Convention by the Cambodian side."

The Ottawa Convention, also called the Anti-Personnel Mine Ban Treaty, is an international agreement banning the use of anti-personnel mines, and both Thailand and Cambodia have committed to it.