North Korea fired back at U.S. Senator Cory Gardner (R-Colorado), calling him a “psychopath” and “human dirt.”

The statement from Pyongyang's foreign ministry Friday was a response to comments Gardner made earlier that week on MSNBC about the country’s leader, according to a translation from the Korean Central News Agency.

“Well, I think most people would agree that Kim Jong-un is a whack job … ,” Gardner said. “This is a crazed maniac at the helm of one of the world’s nuclear regimes.”

In response, North Korea’s foreign ministry released a statement condemning Colorado’s junior senator:

“It is a serious provocation that Gardner like a psychopath dare to bear the evil that dares our highest dignity. It is America 's misfortune that a man mixed in with human dirt like Gardner, who has lost basic judgment and body hair, could only spell misfortune for the United States. Gardner, who has been advocating in the front line for his ‘repressive sanctions pressure’ which has been rejected by the Republic of Korea, has touched our highest dignity, revealing himself as a fierce confrontational fanatic.”

This isn’t the first-time North Korea responded to the insults of an American senator.

U.S. Sen. John McCain faced the foreign ministry’s wrath in March for calling Kim a “crazy fat kid.”

This recent exchange with Gardner came during a week of increased tensions between the United States and North Korea.

Secretary of State Rex Tillerson urged the United Nations Wednesday to consider new sanctions against North Korea if Kim Jun Un continued to move forward with his plans to build a nuclear missile capable of striking the U.S., according to Reuters.

And on Thursday, the U.S. House of Representatives voted to impose new sanctions.

Gardner heads the Senate Foreign Relations Subcommittee on East Asia, the Pacific, and International Cyber Security Policy. And he’s been a vocal advocate to impose harsher penalties on North Korea.

 “The United States is not going to sit idly by while Kim Jong-un tries to hold the world hostage with his illicit arsenal of mass destruction,” Gardner said in a statement. “I’m going to continue to call on the President to fully enforce my legislation that will economically cripple the North Korean Regime, and if that gets this madman to send nonsensical insults at me so be it.”