Former CIA director John Brennan used the news of North Korea's indication it might skip an upcoming peace summit with the United States to criticize President Donald Trump and his negotiating skills.

It was reported Tuesday that North Korea will not attend a planned meeting with South Korea this week. The reclusive nation also said it might not go to high-level meetings with Trump next month either, all because of U.S.-South Korean military drills.

In a statement to MSNBC, Brennan pounced on the news.

"This turn of events is unsurprising, since Donald Trump seems enamored with a 'fire-aim-ready' policymaking process that is fraught with pitfalls as well as potential disasters," Brennan said. "Not sure when, if ever, Mr. Trump will realize that he is not the smartest man or even the best negotiator in the world — indeed, far from it."

Trump and North Korean leader Kim Jong Un are scheduled to meet June 12 in Singapore to discuss North Korea's denuclearization.