SEOUL, South Korea -- North Korea has fired an unidentified missile from its capital, Pyongyang, South Korea says. 

According to Chief Cabinet Secretary Yoshihide Suga, the missile was launched at 6:57 a.m. Japan time, flew over Hokkaido and splashed down at 7:06 a.m., about 2,000 kilometers east of Cape Erimo, according to Reuters news agency.   

A military source tells CBS News the intermediate range missile never posed a threat to the U.S. or Guam.

CBS News foreign correspondent Ben Tracy, who is based in Beijing, reports the playbook seems nearly identical to the last launch, appearing to have been launched from at or near the airport in Pyongyang and it flew over Hokkaido.

South Korea says the missile flew over Japan.

"North Korea fired an unidentified missile eastward from the vicinity of Pyongyang this morning," South Korea's Joint Chiefs of Staff said, according to the Yonhap News Agency. 

South Korea's Joint Chiefs of Staff said Friday that the missile was launched from Sunan, the site of Pyongyang's international airport.

Japan's public broadcasting organization, Nippon Hoso Kyokai (NHK), reports the missile "has flown over northern Japan and landed in the Pacific Ocean." The Japanese government was advising people to stay away from anything that looks like missile debris, NHK reported.

The North last month used the airport to fire a Hwasong-12 intermediate range missile that flew over northern Japan in what it declared as a "meaningful prelude" to containing the U.S. Pacific island territory of Guam and the start of more ballistic missile launches targeting the Pacific Ocean.