A mysterious fireball seen plummeting towards Earth over northern Bangkok and central Thailand lit up social media with dramatic video footage and feverish speculation.
A bright white light was seen hurtling down through the blue sky and then apparently exploding, prompting theories that the blazing cascade was caused by anything from space debris or a burning balloon to a crashing space ship.
But astronomers played down the more outlandish theories, saying that the spectacle was probably caused by a so-called "bolide" - a meteor burning up during entry into the atmosphere.
Dashcam video footage captured the phenomenon that played out in front of commuters during Monday morning rush hour.
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"It's all burned away" Worawit Tanwutthibundit, an astronomer at Chachoengsao Observatory, told Matichon newspaper. "The photo of the white smoke that has been shared a lot is in fact the train of smoke of a meteor. The public need not be concerned. This is a normal phenomenon."
Mr Worawit said that he spotted the apparent meteor as he drove along a motorway in northern Bangkok. He estimated that it plunged at a speed of nearly 50 miles per second before disintegrating from the heat in what looked like an explosion leaving behind a trail of white smoke.
Most meteors completely burn up in space, but they are occasionally seen as dramatic fireballs entering the atmosphere. Most notably, the Chelyabinsk meteor was a "superbolide" that entered the atmosphere over Russia in February 2013. The fireball that streaked across the sky in the southern Ural was brighter than the Sun.