The leaders of Thailand and Cambodia announced today that they have agreed to end the fighting that broke out on the countries’ border last week

The leaders of Cambodia and Thailand agreed to a ceasefire in a bid to bring an end to their deadliest conflict in more than a decade.

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.

The Thai warning came as the U.S. expressed its grave concern about the most serious fighting in years between the Southeast Asian neighbors. The U.S. and China compete for influence in fast-growing Southeast Asia, and both have good relations with Thailand and Cambodia.

Secretary of State Marco Rubio on Monday welcomed a ceasefire agreement between Cambodia and Thailand that halts five days of border clashes that killed dozens and displaced tens of thousands of

After calls by President Trump, the leaders of Cambodia and Thailand are set to meet in Malaysia on Monday to discuss a halt to the fighting.

Leaders of Thailand and Cambodia are scheduled to sit down in Malaysia for ceasefire talks on Monday, the Associated Press reported. Newsweek has reached out to the Cambodian and Thai foreign ministries for comment via email on Sunday.

The State Department raised both advisories to Level 2 on July 25, citing the “risk of unrest” in Thailand and crime and landmines in Cambodia.