TRT World on Instagram: "At least three people were killed and nine others were injured in a knife attack in Taipei, Taiwan. Officials say the 27-year-old suspect set off smoke bombs at a metro station before stabbing people in a shopping area. He later fell from a building and was confirmed dead."

7NEWS Adelaide on Instagram: "EXCLUSIVE: 7NEWS can reveal investigations are underway after a boom gate fail at a busy Adelaide intersection. Dashcam has captured the moment an Adelaide Metro train rolled through a Dudley Park crossing as a car approached. Witnesses were so shocked by the close call that they immediately dialled Triple Zero."

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Metro UK on Instagram: "Climate activist Greta Thunberg has been arrested on suspicion of supporting a terrorist organisation after taking part in a pro-Palestine protest. The campaigner, 22, was handcuffed by police in Fenchurch Street in central London at a protest for hunger strikers who are in jail accused of taking part in Palestine Action raids."