North Korea has threatened to cancel its upcoming meeting with Donald Trump after the United States and South Korea conducted joint military drills.
The pariah state has already cancelled a scheduled meeting with South Korea on Wednesday (local time) for the same reason, according to South Korean news agency Yonhap.
Kim Jong-un and President Trump are expected to meet in Singapore on June 12 for the first ever summit between the two countries.
Despite local reports, US officials have made no further announcements about the scheduled meeting and preparations are ongoing.
State Department spokesperson Heather Neaurt told ABC News: "What we have to go on is what Kim Jong-un has said before, that he understands and appreciates the importance to the United States having these joint exercises, the Republic of Korea has as well. We've received no formal or even informal notification of anything."
The military exercise by the US and South Korea began on May 11, and involved 100 warplanes according to Yonhap.
North Korea's state-run media called the exercise a "provocation" and a "flagrant challenge".
It said the United States will "have to undertake careful deliberations about the fate of the planned North Korea-US summit in light of this provocative military ruckus jointly conducted with the South Korean authorities."
Ms Neaurt said the exercises were "legal" planned well in advance and "not provocative".