Two little girls tottered about hand in hand as their mum walked behind them and recorded the adorable scene on her mobile phone.
Moments later, one of them vanished from her sight.
The sisters were crossing a fifth-storey link bridge of a building in Sabah when tragedy struck on Dec 1.
They didn't know of the danger lying ahead of them — a sizable gap at the end of the bridge which the younger girl later fell through, Daily Express reported.
The 19-month-old was rushed to a hospital where she was pronounced dead at 4.30pm.
In the video taken by the girls' mum, there was no visible sign that alerted the public that the bridge, which was linked to a building under construction, was incomplete.