President Trump said Friday that North Korean leader Kim Jong Un will come to regret making threats to the United States after the country warned of a possible attack on Guam. 

If Kim makes more threats or takes any action against a U.S. territory or American allies, Trump said, “He will truly regret it. And he will regret it fast.”

The president made the comments ahead of a meeting at his New Jersey golf club, where he is on a working vacation, on his administration’s workforce development policies. Labor Secretary Alex Acosta and Education Secretary Betsy DeVos were both in attendance.