Services on Perth’s Armadale line are disrupted after a train collides with a trolley on the tracks, prompting authorities to shut down the line and causing commuter delays. Multiple reports describe widespread disruption following the incident and note that the trolley is believed to have been placed on the rail corridor deliberately. Authorities do not indicate a confirmed motive in the available accounts, but they treat the placement as intentional rather than accidental. The reports agree that the incident is the cause of the disruption and that the train’s impact with the trolley is central to the investigation. The line remains closed at the time of reporting, with train services affected while the situation is managed and investigations continue. Overall, both outlets attribute the disruption to the same collision event and align on the key development: investigators believe the trolley was intentionally put on the tracks.