This undated picture released from North Korea
This undated picture released from North Korea's official Korean Central News Agency (KCNA) on June 4, 2016 shows North Korean leader Kim Jong-Un inspecting the remodeled Mangyongdae children's camp in Pyongyang. / AFP / KCNA / KCNA (Photo credit should read KCNA/AFP/Getty Images)
PHOTO: KCNA/AFP/AFP/Getty Images
Now playing
01:26
South Korea: North Korea fired three ballistic missiles
PHOTO: Nicolas Asfouri/Pool/Getty Images/AFP PHOTO/KCNA VIA KNS
Now playing
01:27
North, South Korean leaders to meet again
PHOTO: Airbus Defense and Space
Now playing
01:44
New images show N. Korea dismantling test site
PHOTO: CNNI
Now playing
00:40
Pompeo dismisses N. Korea's 'gangster' comments
SINGAPORE - JUNE 12: In this handout photo, North Korean leader Kim Jong-un shakes hands with U.S. President Donald Trump during their historic U.S.-DPRK summit at the Capella Hotel on Sentosa island on June 12, 2018 in Singapore. U.S. President Trump and North Korean leader Kim Jong-un held the historic meeting between leaders of both countries on Tuesday morning in Singapore, carrying hopes to end decades of hostility and the threat of North Korea
SINGAPORE - JUNE 12: In this handout photo, North Korean leader Kim Jong-un shakes hands with U.S. President Donald Trump during their historic U.S.-DPRK summit at the Capella Hotel on Sentosa island on June 12, 2018 in Singapore. U.S. President Trump and North Korean leader Kim Jong-un held the historic meeting between leaders of both countries on Tuesday morning in Singapore, carrying hopes to end decades of hostility and the threat of North Korea's nuclear program. (Photo by Kevin Lim/THE STRAITS TIMES/Handout/Getty Images)
PHOTO: Handout/Getty Images AsiaPac/Getty Images
Now playing
01:56
Kim Jong Un snubbed Mike Pompeo, source says
WASHINGTON, DC - MAY 09:  National Security Adviser John Bolton speaks on a morning television show from the grounds of the White House, on May 9, 2018 in Washington, DC. Yesterday President Donald Trump announced that America was withdrawing from the Iran nuclear deal.  (Photo by Mark Wilson/Getty Images)
WASHINGTON, DC - MAY 09: National Security Adviser John Bolton speaks on a morning television show from the grounds of the White House, on May 9, 2018 in Washington, DC. Yesterday President Donald Trump announced that America was withdrawing from the Iran nuclear deal. (Photo by Mark Wilson/Getty Images)
PHOTO: Mark Wilson/Getty Images
Now playing
01:34
Bolton: US has plan for denuclearizing N. Korea
PHOTO: Planet Labs Inc.
Now playing
01:25
Satellite images show missile plant construction
PHOTO: CNN
Now playing
01:14
Susan Rice: Kim Jong Un beat Trump at summit
Images of the Norrth Korea missile launch on November 28 taken from Rodong Sinmun, North Korea
Images of the Norrth Korea missile launch on November 28 taken from Rodong Sinmun, North Korea's official newspaper.
PHOTO: From Rodong Sinmun
Now playing
02:14
Will North Korea restart nuclear tests?
PHOTO: Photo Illustration/Getty Images
Now playing
03:00
Will Kim Jong Un ever give up his nukes?
PHOTO: Photo Illustration/Getty Images
Now playing
02:27
What's bringing Kim Jong Un to the table
Now playing
01:51
Who is Kim Jong Un?
PHOTO: CNN
Now playing
01:43
Connolly: Trump comment on Kim 'jaw-dropping'
Now playing
02:31
Moon: The masterful dealmaker
Trump Kim Jong Un comment 04240218
Trump Kim Jong Un comment 04240218
PHOTO: CNN
Now playing
01:26
Trump: Kim Jong Un very open and honorable
Now playing
03:06
Finding art on the edge of the DMZ

Story highlights

Military says the range of the missiles includes all of South Korea

Test comes after Seoul announced it will deploy THAAD missile defense system

(CNN) —  

North Korea fired three ballistic missiles off its eastern coast on Tuesday morning, according to the South Korean military.

The missiles, launched between 5:45 a.m. and 6:40 a.m. local time, were fired from North Hwanghae province in the western part of North Korea and traveled between 500 and 600 kilometers (between 310 and 370 miles), according to a statement from the South Korean Joint Chiefs of Staff.

According to North Korean state media, Kim Jong Un personally “provided field guidance” for the drill.

The missiles are believed to be short-range, Scud or Rodong type and flew around 500 to 600 kilometers (300 - 380 miles), said Jeon Ha-gyu, spokesman for the South Korean Joint Chiefs of Staff.

The statement noted that this range encompassed all areas of South Korea, including the seaport of Busan at South Korea’s southern tip.

The missile test comes six days after South Korea announced it will deploy the advanced U.S THAAD missile defense system at Seongju County, about 250 kilometers (155 miles) southeast of Seoul.

When active, the system should be able to defend two-thirds of South Korea from an attack by their northern neighbor.

The North Korean drill was conducted “under the simulated conditions of making preemptive strikes” on the regions of South Korea where THAAD is located, state-run KCNA said.

It isn’t North Korea’s first missile test this month – on July 9, a ballistic missile was fired from a submarine off the country’s east coast, which shortly afterward fell into the water.

The submarine launch came shortly after the original announcement of South Korea’s THAAD defence system and the U.S. placing even stricter sanctions on North Korean leader Kim Jong Un for alleged human rights abuses.

Seven months of sabre-rattling

The region has been on edge since North Korea announced it had successfully tested a hydrogen bomb in January, after a magnitude 5.1 seismic event was detected inside the rogue state.

The U.N. Security Council voted to impose significant punitive measures on the state at the time.

It didn’t appear to deter North Korea however – in June, the country fired two Musudan intermediate-range missiles from their eastern coast, one of which they announced had been a successful test.

U.S. and South Korean officials said out of the two tests, one had flown just 150 kilometers (93 miles) before plunging into the Sea of Japan, while the other had traveled 400 kilometers (249 miles).

In addition to the June tests, North Korea had already fired four other Musudan missiles in 2016, including one on the anniversary of Kim Il Sung’s birthday in April – all were reporte to have failed.