Speaking on MSNBC, Senator John McCain made a brutally harsh statement about North Korean leader Kim Jong Un that may have provoked thermonuclear war.

McCain called Kim Jong Un fat.

Yup. McCain said, "China is the one, the only one, that can control Kim Jong Un, this crazy fat kid that's running North Korea.”

Texas Sen. Ted Cruz (R-Texas) made a less harsh accusation, only claiming North Korea assassinated Kim Jong Nam, the exiled half-brother of Kim Jong Un who was killed with a banned nerve agent in a Malaysian airport.

A spokesman for Kim Jong Un told the Korean Central News Agency (KCNA), North Korea's state media outlet that McCain and Cruz had crossed the line, stating:

On March 21, Ted Cruz and other conservative hawks of the U.S. Senate, submitting a bill on re-listing the DPRK as "terror-sponsor", hurled mud at its supreme leadership. On March 22, John McCain, chairman of the Armed Services Committee of the Senate, at a press interview again hurt its dignity. What they uttered to dare hurt the dignity of the supreme leadership of the DPRK, is just a manifestation of their worst hostility toward the DPRK's ideology and social system and its people and a grave provocation little short of declaration of war against it. The service personnel and people of the DPRK are regarding the dignity of their supreme leadership as their life and soul. The U.S. must know very well about how they react to any offensive acts against it. As such guys as John McCain and Ted Cruz made a provocation tantamount to declaration of war against the DPRK, the DPRK will take steps to counter it …

They will have to bitterly experience the disastrous consequences to be entailed by their reckless tongue-lashing and then any regret for it will come too late … the revolutionary forces of the DPRK with its nuclear force for self-defense as its pivot will fulfill its sacred mission of devotedly defending its supreme leadership representing the destiny and life of its people by dealing a merciless sledge-hammer blow at those daring hurt the dignity of the supreme leadership like a puppy knowing no fear of the tiger.

McCain responded with a hilarious tweet: