In this April 11, 2019 photo, US President Donald Trump (right) speaks during a meeting with the Republic of Korea's President Moon Jae-in in the Oval Office of the White House in Washington. (EVAN VUCCI / AP)

SEOUL — The Republic of Korea (ROK)'s President Moon Jae-in is scheduled to hold phone talks with US President Donald Trump Tuesday night over situations on the Korean Peninsula, according to ROK's presidential Blue House.

Ko Min-jung, Blue House spokesperson, said at a press briefing that the ROK and US leaders will exchange opinions on situations that have unfolded on the Korean Peninsula after the Washington summit between Moon and Trump on April 11.

Moon and Trump are slated to discuss ways to move forward the current phase of the situation on the Korean Peninsula, said a Blue House spokesperson, adding that the two are also expected to exchange opinions on DPRK's short-range projectiles launch over the weekend

Moon and Trump are slated to discuss ways to move forward the current phase, said Ko, adding that the two leaders are expected to exchange opinion about the Democratic People's Republic of Korea (DPRK)'s short-range projectiles launch over the weekend.

The DPRK fired several short-range projectiles, believed to have been launched from multiple rocket launchers and a new type of tactical guided weapons, into the sea from the east coast city of Wonsan Saturday morning. The projectiles traveled between 70 km and 240 km at an altitude of 20 km to 60 km, according to ROK's defense ministry.

ALSO READ: ROK 'worried' as DPRK launches short-range projectiles

According to the defense ministry report submitted to the chief of the parliamentary defense committee, DPRK's projectile launches over the weekend were seen as a live-fire exercise, rather than a provocation.

The launches were seen as a live-fire exercise as they happened in an open space in the morning. In the past, the DPRK launched missiles in an unidentified place before dawn.

This May 4, 2019 photo provided on May 5, 2019 by the DPRK government shows a test of weapon systems in the DPRK. (KOREA CENTRAL NEWS AGENCY / KOREA NEWS SERVICE VIA AP)

The parliamentary defense committee chief said at a press briefing that the DPRK's projectile launches seemed to be aimed at giving signals to both ROK and the United States.

READ MORE: DPRK's Kim oversees 'strike drill' of rocket launchers

The DPRK's projectile firing came after the second summit between top DPRK leader Kim Jong-un and US President Donald Trump ended with no agreement in late February in Vietnamese capital of Hanoi.

Following the projectile firing, Trump said on his Twitter account that the DPRK leader "does not want to break his promise," noting that a "deal (with DPRK) will happen."

Choi Hyun-soo, a spokesperson from ROK's defense ministry, said at a regular press briefing that the ministry was deeply worried about the DPRK's projectile launches, which violate the spirit of the inter-Korean comprehensive military agreement.

Choi urged Pyongyang to stop any act that can escalate tensions on the Korean Peninsula.

The military agreement was signed by defense chiefs of the two Koreas during the third summit in Pyongyang last September between ROK President Moon Jae-in and Kim.

ROK, US, Japan to hold trilateral security talks in Seoul Thursday

Also on Tuesday, local media reported, citing ROK's defense ministry, that ROK, the US and Japan will hold the annual trilateral security talks later this week in Seoul.

The 11th round of Defense Trilateral Talks (DTT) will be held Thursday in the headquarters of ROK's defense ministry in Seoul. The DTT was launched in 2008 to discuss regional security issues, including DPRK's nuclear and missile programs.

The meeting will be attended by ROK Deputy Minister for National Defense Policy Chung Suk-hwan, US Assistant Secretary of Defense for Indo-Pacific Security Affairs Randall Schriver and Takeshi Ishikawa, director general for defense policy of Japan.