SEOUL, July 4 (Xinhua) -- South Korean President Moon Jae-in on Tuesday expressed his hope that the Democratic People's Republic of Korea (DPRK) would not cross a bridge that it cannot return following the DPRK's test of a new type of ballistic missile.

Moon made the remarks during his meeting with visiting former British Prime Minister David Cameron, according to the presidential Blue House.

The South Korean leader, who took office on May 10, said he will not be sure about how his country and the United States would react if the DPRK crosses the "red line" and does not positively respond to the proposal of the Korean Peninsula denuclearization in a peaceful manner agreed upon by Moon and U.S. President Donald Trump.

Moon visited Washington to hold his first summit meeting with Trump for two days from last Thursday. According to the joint statement released after the meeting, President Trump supported South Korea's "leading role" in fostering an environment for peaceful reunification of the Korean Peninsula.

Moon told Cameron that the DPRK did not positively respond to the peace initiative of the peninsula based on the complete denuclearization, expressing his hope that Pyongyang should not cross a bridge of no return.

His comments followed the DPRK's test-launch of a ballistic missile early Tuesday.

According to South Korea's Joint Chiefs of Staff (JCS), the DPRK fired off a ballistic missile into its eastern waters from an area near Banghyeon, North Pyongan province in the DPRK's northwest region at around 9:40 a.m. local time (0040 GMT).

The DPRK declared later in the day that it has successfully launched an intercontinental ballistic missile (ICBM).

The missile flew 933 km and was lofted as high as 2,802 km to travel for 39 minutes and strike the target in its eastern waters, according to the DPRK's media report.

Right after being briefed on the DPRK's missile firing, Moon convened the national security council meeting of the Blue House, saying it was in a clear violation of UN Security Council resolutions and defies repeated warnings from the international community.

The JCS said in a separate statement that whether the DPRK-fired missile had a capability of an ICBM was still being analyzed by the military authorities of South Korea and the United States.