On Tuesday, the South Korean military fired several warning shots at an unidentified object flying across the military demarcation line.
In a similar incident on January 16, past year South Korea fired at a suspected North Korea drone at the demilitarized zone. In its latest effort to develop its ballistic and nuclear weapons, North Korea fired a medium-range missile Sunday that appeared to be similar to one the country tested earlier this year, USA and South Korean officials said.
The South Korea military are as vigilant and alert as ever after North Korea did another ballistic missile test on Sunday, its 8th of the year.
Chinese enterprises and banking institutions could be targeted with secondary sanctions because China accounts for about 90 percent of North Korea's trade in terms of total value.
The mystery flying object may have been a drone, local media speculated.
"The council is firmly united in rejecting the continuation of the launching of rockets by North Korea", said council president Ambassador Elbio Rosselli of Uruguay.
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The most immediate impact would be on South Korea, potentially within zero to six minutes; followed by Tokyo, which could be hit in 10-11 minutes. Also, the BBC notes that South Korean troops fired shots at a suspected drone in 2016. "The military has beefed up our anti-air surveillance and maintained readiness posture", South Korea's Joint Chiefs of Staff told reporters. A US State Department spokesman has said North Korea would have to "cease all its illegal activities and aggressive behavior in the region".
South Korean President Moon Jae-in's top security advisor on Monday voiced a need to resume talks with North Korea, though he said the dialogue must not get in the way of worldwide sanctions against the communist state.
Japan's United Nations ambassador, Koro Bessho, whose government requested Tuesday's meeting along with the US and South Korea, told reporters the launch was a "blatant violation" of existing council resolutions.
Seoul military officials initially suggested the item was a drone from North following the incident on Tuesday, before saying Wednesday that balloons carrying propaganda leaflets had blown in across the frontier, one of the most fortified locations in the world.
North Korean leaders quite rationally concluded that Iraq's mistake was not its pursuit of a weapon but rather its failure to build one.