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A video showing debris flying around a construction site at Changi East has been circulating on social media platforms.
Several Stompers alerted Stomp to the footage that showed pieces of debris flying in the air in a circular pattern.
One YouTube user, Amin Aziz, posted the video and described the weather phenomenon as a 'tornado'.
Other netizens in the comments speculated that it was most likely a waterspout.
A waterspout is a weather phenomenon that is essentially a whirling column of air and water mist.
In response to a Stomp query, a Changi Airport Group (CAG) spokesman said: "The incident which occurred in the morning of Sunday 30 April at the Changi East development site was caused by an unusual natural phenomena, and fortunately, no one sustained injuries.
"CAG and our contractors have since secured the movable items with additional support and works at the site have resumed following a safety assessment."