They are tiny objects but they caused a big ruckus yesterday morning, making a train door jam and slowing MRT services on the East-West Line.
In response to queries, SMRT said an earring and two beads - retrieved by technicians - caused the door to jam on an eastbound train travelling from Joo Koon to Dover at 8am.
It added that trains travelled at slower speeds, and passengers at Chinese Garden Station were asked to alight and board two other trains instead.
Earlier, commuters vented their frustration on social media, with a photo making the rounds purportedly showing a screen announcing an additional 10 minutes of travelling time between Joo Koon and Clementi stations on the East-West Line, in the direction of Pasir Ris.
Others tweeted pictures of long queues at MRT stations.
SMRT did not issue any updates on its Facebook or Twitter pages.
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