SEOUL (Reuters) -There is no written agreement yet on a trade deal between South Korea and the United States announced by President Donald Trump this week, the Asian nation's trade minister said on Friday.

The agreement comes after other American allies, like Japan, clinched their own deals, partly to moderate President Trump’s tariff threats.

Earlier in the talks the U.S. had pressed South Korea to lift restrictions on imports derived from cattle older than 30 months, but Yeo helped defuse that by showing the Americans a photo of massive protests that occurred years ago over concerns about mad cow disease.