A man has died after being struck by a C-Train just north of the Rundle station early Thursday morning, causing traffic delays along Calgary's northeast LRT line for several hours while officials investigated.

It happened at 36th Street and 26th Avenue N.E. just before 8:30 a.m. MT, according to EMS.

​The man was declared dead at the scene.

The collision happened just before 8:30 a.m. north of Rundle station. (Evelyne Asselin/CBC)

Calgary Transit brought in shuttle buses for passengers affected by the service disruption. Rundle station has since reopened.

All the bells and blocking arms were working and the train had the right of way, said Staff Sgt. Paul Stacey with the Calgary police traffic unit. He said several witnesses were interviewed.

Officials now say the man was suffering from a medical issue, which led to the collision, but Calgary Transit spokesperson Ron Collins had said earlier that investigators believed the man's death was not an accident.

This is the second fatality involving the LRT in as many days.