Police have arrested two juvenile suspects after bottles filled with chemicals were found on MBTA tracks in Concord, Massachusetts on Tuesday evening.
Concord police responded to a small brush fire around 5 p.m. when they discovered the first bottle in the flames. The second bottle was set to explode but had not been ignited.
Police said the bottles contained two 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.
Nobody was hurt and no trains hit the bottles, but they did delay the evening commute for hundreds of passengers.
Police do not believe this was an act of terrorism.
The male juveniles, ages 14 and 15, are residents of Concord. They will be summoned into court for possession of incendiary devices and interfering with public transportation.