UFO over Korea's DMZ was actually a flock of birds Jets were dispatched after unidentified flying objects raised alarm at DMZ.

SEOUL, South Korea -- South Korea’s fighter jets were dispatched after unidentified flying objects raised alarm on Monday at the demilitarized zone (DMZ) that borders North Korea. The announcement sent many global media outlets scrambling as the incident occurred a day after President Donald Trump and North Korean leader Kim Jong Un met at another area of the DMZ.

It was later revealed that the flying objects turned out to be a flock of birds. The DMZ, uninhabited for 66 years, is a haven for birds.

"Upon spotting unidentified object in the sky above DMZ, Air Force pilot was deployed and later confirmed that the trace was made by around 20 birds,” an officer from the Joint Chiefs of Staff told reporters in Seoul.

Trump became the first U.S. president to step into North Korea Sunday, reaching across the demarcation line to shake hands with Kim and then, at Kim's invitation, stepping across the border and into North Korea, a historic moment Trump called "a great honor."

Officials from both the U.S. and South Korea have insisted the meeting had not been prearranged.

ABC News' Hakyung Kate Lee and The Associated Press contributed to this report.