Cambodia and Thailand exchanged fire across their disputed border for a fourth day on Sunday, hours after US President Donald Trump announced the two Southeast Asian nations had agreed to ceasefire talks and threatened continued fighting would jeopardize their trade deals with Washington.

At least 32 people have been killed and more than 200,000 displaced since Thursday, according to Thai and Cambodian officials, in clashes that have rumbled on despite calls from the United Nations, United States and China for the fighting to stop.

Both sides have accused the other of starting the latest border flare-up, and traded blame for the ongoing fighting.

Their leaders will meet in Malaysia on Monday to discuss the escalating conflict, according to Malaysia’s state news agency, citing the country’s foreign minister.

Hours after Trump’s announcement, Thailand’s government on Sunday said it was “not ready” to stop military operations and accused Cambodia of continuing to fire heavy artillery at civilian areas in its Surin province, on the border, and several other areas.