Officials said a homemade explosive device was found by railroad tracks in Concord. A law enforcement source told WCVB that it appears someone put a chemical or chemicals in plastic bottles with the intent to create a fire or explode. Several of them were placed around the tracks. One of the bottles caused a fire, which police responded to at 4:50 p.m. The Massachusetts Bay Transportation Authority said Commuter Rail trains were stopped due to the police activity in Concord. An MBTA spokesperson said it appears the incident was a juvenile prank, but authorities are still actively investigating. Transit police said this was not an act of terrorism.

Officials said a homemade explosive device was found by railroad tracks in Concord.

A law enforcement source told WCVB that it appears someone put a chemical or chemicals in plastic bottles with the intent to create a fire or explode. Several of them were placed around the tracks.


One of the bottles caused a fire, which police responded to at 4:50 p.m.

The Massachusetts Bay Transportation Authority said Commuter Rail trains were stopped due to the police activity in Concord. An MBTA spokesperson said it appears the incident was a juvenile prank, but authorities are still actively investigating.

Transit police said this was not an act of terrorism.