Thailand on Friday sent back two Cambodian soldiers detained for crossing the border, ahead of key ceasefire talks in Malaysia next week, Reuters reported.

The move follows last week’s deadly clashes— the worst in over a decade— that killed at least 43 and displaced over 300,000. A truce was reached after mediation by Malaysia and pressure from US President Trump, who linked peace to ongoing tariff talks.

Thailand is still holding 18 Cambodian soldiers for immigration violations. Cambodia has called for their immediate release under humanitarian law.

Defense officials from both sides, along with ASEAN, US, and China representatives, will meet in Malaysia from August 4–7 to reinforce the ceasefire and address border security, according to Reuters.