Trump ignites a firestorm on social media with this 'hilarious' tweet mocking Kim Jong-Un

President Donald Trump set Twitter ablaze Saturday evening with a tweet trolling North Korean Dictator Kim Jong-Un.

What did he say?

"Why would Kim Jong-Un insult me by calling me "old," when I would NEVER call him "short and fat?" Oh well, I try so hard to be his friend - and maybe someday that will happen!" Trump said.

The tweet came as Trump was spending his last few hours in Vietnam. He has spent more than a week out of the country on a tour of southern Asia. North Korea hasn't been thrilled with the trip, as Trump has urged many of the area's leaders to cut off economic trading with North Korea and has asked them to pressure Kim Jong-Un to give up his nuclear weapons.

"His current trip to our surrounding region is a warmonger's visit for confrontation to rid the DPRK (Democratic People's Republic of Korea) of its self-defensive nuclear deterrence," the North Korean foreign ministry said earlier in the week. Kim also described Trump as a "lunatic old man," according to USA Today.

What was the reaction?

So far, the tweet has received more than 150,000 retweets, 320,000 "likes," and more than 90,000 responses, high numbers for a Trump tweet. Some were outraged by the tweet, while others thought it was funny.

Is this real? Somebody hijacked his Twitter account? What adult talks like this?

— shawn taylor (@satesq) November 12, 2017

I... I just... did you just have a stroke or something?

— Joey Ferrito (@JosephJFerrito) November 12, 2017