By Shoon Naing, Artorn Pookasook and Susan Heavey SISAKET, Thailand/WASHINGTON (Reuters) -U.S. President Donald Trump said on Saturday that the leaders of Cambodia and Thailand had agreed to meet immediately to quickly work out a ceasefire,

US President Donald Trump on Saturday called upon Cambodia and Thailand to put an end to the ongoing deadly border conflict, threatening them that America would not make any trade deal with them if they did not announce a ceasefire.

"The U.S. already flunked the test and that should be a wakeup call," a former senior U.S. State Department official told Newsweek.

As fighting spread to at least six areas along the arcane frontier, Thailand’s military closed crossings between the countries. The fighting spurred at least 40,000 civilians from more than 80 villages near the border to flee to makeshift bomb shelters of sandbags and car tires.

Cambodian officials are reporting 12 new deaths in its fighting with Thailand, bringing death toll on both sides to 32