Unknown over Koh Samui (Thailand) · Thailand

The report, as filed

It was raining with low cloud cover & somewhat poor visibility. A flashing light appeared in the South-West sky & traveled very fast to the North-East, like an orbit path. The light appeared to be the full length of the object & exactly rectangle & very bright. It would flash in about 1 second intervals. There was no noise associated with the UFO & was no tail. I estimate the object was under 1000 feet altitude & travelling much faster than any normal plane or UAV. It would have to be travelling at Mach 2-4. I think the object was about 10-20 metres in length.

Held as-reported from National UFO Reporting Center (record NUFORC #157040). Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.