A young runner has died after mysteriously collapsing on a busy street in Carlsbad.
Police responded to calls of a man lying in the road on Tamarack Avenue near Jefferson Street just before 6 p.m. on Tuesday.
They say the 18-year-old man collapsed while running and was not hit by a car.
He was taken to Tri-City Hospital, where he later died.
The man’s identity has not been released and the cause of death is not yet clear.