By CBSBoston.com Staff

CHELMSFORD (CBS) – A 17-year-old male was seriously injured after he was struck by a train just after noon on Wednesday in Chelmsford.

Chelmsford Police said the teen was walking on the tracks and did not realize a train was approaching when the crash happened.

He was treated at the scene by paramedics, then flown to a Boston hospital. The crash is under investigation.

CBSBoston.com Staff