U.S. Secretary of State Marco Rubio said State Department officials were in Malaysia to assist peace efforts as Cambodia and Thailand were scheduled to begin talks there on Monday in hopes for a ceasefire.

State Department officials are currently in Malaysia to assist in the ceasefire talks between Thailand and Cambodia, Secretary of State Marco Rubio announced. The two Southeast Asian countries have been involved in a deadly border conflict since late last week,

Negotiations to end the border conflict, which has killed dozens of people since it began last week, are scheduled for Monday in Malaysia’s capital.