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A panicked mum waves in desperation as she and her son "drown" in a giant children's ball pit.
Submerged Vivien Low can be seen frantically pushing her arm above the ball line to attract help in the shocking footage.
She had fallen in with her four-year-old son Riley after losing her balance near the blue and white ball pit in Singapore.
Blogger Vivien, who is 5ft 6ins, wrote on Facebook that she had lost her balance and fallen backwards, stating: "I could not reach the bottom and I could not stand up. I tried to roll over, I couldn’t."
AirZone, which runs the play area, has pledged to review safety at the City Square Mall after the video went viral.