Transit Police report arresting a pair of Concord teens on charges they concocted a pair of flash-fire devices, one of which went off near the Sudbury Road crossing on Fitchburg Line yesterday afternoon, starting a brush fire that halted commuter-rail service.
They were made up of a plastic bottle that contained 2 liquid chemicals that can be purchased over the counter. When the chemicals interact with one another, over a period of time, they heat up and cause a flash fire.
Detectives from the Transit and Concord Police investigated the incident jointly. Our collaborative partnership lead to the expeditious identification of two male juveniles ages 14 and 15. Both juveniles are residents of Concord. The juveniles will be summoned into court for Possession of Incendiary Devices and Interfering with Public Transportation. Other minor aspects of the investigation is ongoing.
Based on what we know at no time was the safety of our passengers, residents of Concord or the buildings/residences in harms way.