A total of 371 fireballs were seen rising from the Mekong River in the two Nong Khan districts of Rattanawapi and Phon Phisal.
On Thursday night, some 147,700 locals and tourists gathered in the two districts to witness the phenomenon. Records show 299 fireballs were spotted in Rattanawapi district and 72 in Phon Phisai.
The number of people visiting Nong Khai to witness this phenomenon has risen from 81,610 last year, and the number of fireballs has also increased by 82.
This year, the spot with the highest number of fireballs was Ban Nong Kaew area in Rattanawapi district, where 42 fireballs were recorded.
Three other locations that saw 40 fireballs each were Ban Tha Muang Pier, Ban Tanchum and Ban Dong Mod Daeng in Rattanawapi district.
The spot that attracted the most spectators was the Ban Tha Muang Pier, where some 30,000 people showed up, followed by Ban Tanchum, which saw some 25,000 people.