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.

U.S. President Donald Trump speaks to reporters at Glasgow Prestwick Airport in Scotland on Friday. He and his administration have had a week of spats with TV personalities, even suggesting after one late-night show was cancelled that other shows critical of him could be on the chopping block.