"We think they are explosives as they contain liquid that smells like gasoline and some triggering devices, but further testing is required to identify the substance," a police spokesman told AFP.
Taiwan High Speed Rail Corp. said it alerted police after two unattended bags with a "strong odour" were spotted in a bathroom in train 616 bound for the capital.
It evacuated the passengers when the train arrived at Taoyuan station near Taipei, and police removed the bags for investigation.
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The company said it had not received any threats prior to the incident and added that it was the first time an evacuation was carried out over unidentified objects found on one of its trains.
