About 400 passengers were evacuated from an MTR train in Hong Kong on Friday morning after a portable power bank caught fire in a carriage, filling the compartments with thick smoke. Police said they received a report at about 8.35am that the external battery pack had ignited on a train on the Tuen Ma line bound for Wu Kai Sha as it arrived at Tsuen Wan West station. No injuries were reported. Footage circulating on social media appears to show a black bag on fire and emitting thick white smoke...