Kim Jong Un displays his nuclear facility and advocates for a "significant" increase in warheads.

North Korea released first-ever photos of a uranium enrichment site on Thursday.

This week, Kim Jong Un unveiled the facilities that produce the crucial components that fuel his nuclear weapons.

Kim announced plans to expand his military's nuclear arsenal and prepare for conflict with the U.S. and its allies, while simultaneously sharing photos of himself touring the facility.

KCNA released pictures that offer a glimpse into North Korea's clandestine nuclear program, which is prohibited under several UN Security Council resolutions.

Kim is seen strolling through a facility containing centrifuge machines that spin uranium at high speeds to create nuclear warheads.

According to KCNA, Kim visited a nuclear weapons institute and a production base for weapon-grade nuclear materials, and instructed the base to increase the number of centrifuges to exponentially increase the number of nuclear weapons.

"KCNA reported that he toured the control room of the uranium enrichment base to gain insight into the overall operation of the production lines and was impressed by the base's ability to produce nuclear materials efficiently."

Photos revealed that Kim Jong-un visited an army training base on Wednesday to guide the drill of combatants, according to KCNA.

On Thursday, North Korea launched several short-range ballistic missiles into the sea, with the landing point being between the Korean peninsula and Japan. The range of the missiles indicates they were intended for South Korea.

Over two months, North Korea had not engaged in any public weapons firing exercises until now.

Kim stated that his commitment to intensify his nuclear efforts was due to the "severe danger" resulting from the "irresponsible enlargement" of a U.S.-led regional military alliance, as he described it.

For five consecutive days, balloons filled with garbage were flown from North Korea to South Korea last week.

Officials in Seoul slammed Pyongyang for its nuclear developments.

The Ministry of Unification stated that any nuclear threat or provocation by North Korea will be met with a strong response from our government and military, based on the solid extended deterrence of the South Korea-US alliance, as reported by South Korea's Yonhap news agency.

The number of nuclear warheads North Korea possesses is uncertain. In July, a report by the Federation of American Scientists estimated that the country may have enough fissile material to build up to 90 nuclear warheads, but it is believed to have assembled closer to 50.