North Korea's state-run TV broadcaster said that Pyongyang carried out the sixth nuclear test at 12:00 p.m. in a special announcement hours after an artificial earthquake was detected near its nuclear test site. An artificial earthquake with a 5.7 magnitude was detected at 12:29 p.m. near North Korea's nuclear site in the northeastern area.
Earlier in the day, North Korea claimed that it has developed a hydrogen bomb that can be mounted on an ICBM.
"The H-bomb test was carried out to examine and confirm the accuracy and credibility of the power control technology, and internal structural design newly introduced into manufacturing H-bomb to be placed at the payload of the ICBM," the Korean Central News Agency said.