North Korea’s rocket launch on Sunday appears to have been a success at putting a satellite into orbit, South Korean military sources told Yonhap News Agency on Sunday.

If true, it would be the second time North Korea has successfully put a satellite into orbit, though neither South Korean nor U.S. agencies have confirmed whether it is in communication with DPRK space authorities.

“Carrier rocket Kwangmyongsong was launched from Sohae Satellite Launch Station in Cholsan Country, North Phyongan province at 9 a.m. on Feb. 7, 2016, and after 9 minutes and 46 seconds, it launched earth observation satellite Kwangmyongsong-4 precisely into